Nutrition

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    • Overnight Protein 1kg
    • Science In Sport
    • Overnight Protein 1kg

      High quality slow release protein that contributes to the maintenance and growth of muscle mass while you sleep:

      • Slowly digested milk protein
      • Maintains muscle mass while you sleep
      • Fuelling gold medal winners since 1992
      • Informed Sport tested

      About SiS Overnight Protein

      SiS Overnight Protein is made from high quality milk protein for a great taste and trusted source of protein. The product formulation provides a source of slowly digesting protein to provide a pool of amino acid to support lean muscle growth and maintenance as you sleep.

      Each serving contains 26-27g of protein per serving, depending on the flavour you choose. The milk protein contains the same ratio of fast and slow release proteins as found naturally in milk. Milk protein is over 80% casein, which is a slowly absorbed protein, and around 20% whey, which is rapidly absorbed. Whey protein stimulates the rate of muscle protein synthesis with its' high leucine content. The formulation has low levels of carbohydrate and fat.

      Why should I take SiS Overnight Protein?

      Sleep is one of the most important aspects of recovery and is often unappreciated by many athletes. Regularly feeding protein every 3-4 hours in servings around 25g is the best way to support the growth and maintenance of lean muscle mass. Feeding during the night is obviously very difficult so taking a slow release protein before bed allows quality sleep and quality protein delivery to maximise your training adaptations.

      During times of high volume training it can be difficult to avoid negative energy balance. Taking protein prior to bed reduces the likelihood of lean muscle mass breakdown to supply energy during the night.

      Milk protein was recently found to be superior to Micellar Casein in a randomized, double blind trial in supporting resistance training.

      As with all SiS products, SiS Whey Protein is produced at our Informed Sport accredited factory and is rigorously screened to ensure a clean, safe product that athletes of all levels trust.

      Recommended Usage

      SiS Overnight Protein should be taken 45-60 minutes before bed. Can be served hot or cold.

      Nutritional Information:

      Typical values per serving 35g

      • Energy: 550kj/130kcal
      • Protein: 26g
      • Carbohydrate: 1.9g
      • of which sugars: 0.7g
      • Fat: 2.0g
      • of which saturates: 1.2g
      • Fibre: 1.1g
      • Salt: 0.3g

      Contains Milk, Soy - SiS Whey Protein is Gluten Free - Suitable for Vegetarians

        • Code
        • Product
        • RRP
        • SIS700C
        • Overnight Protein 1kg Chocolate
        • £48.00
        • SIS700D
        • Overnight Protein 1kg Vanilla
        • £48.00
    • REGO Rapid Recovery 1.6kg
    • Science In Sport
    • REGO Rapid Recovery 1.6kg

      High GI carbohydrate and protein formula to aid rapid recovery after exercise:

      • Optimal protein serving size of 20g with 2g of leucine to promote the rebuilding of muscle tissue
      • Helps replenish your energy stores fast
      • Ideal for lactose intolerant individuals
      • The original complete recovery product

      About SiS REGO Rapid Recovery

      SiS REGO Rapid Recovery contains a blend of easily digestible carbohydrates, protein, and electrolytes with vitamins & minerals to provide a complete recovery product to be consumed immediately after exercise. Rapid replenishment of your glycogen stores and the provision of protein helps you to get the most from your training and prepare you for your next session.

      Benefits of SiS REGO Rapid Recovery?

      Carbohydrate is your bodies main fuel for moderate to high intensity exercise. Even if you fuel well during training you can still only absorb around 60g of carbohydrate per hour, meaning that demand will outstrip the supply of energy. This shortfall is met by using your glycogen stores, but these must be replenished after training if you are to perform well in your next session.

      Providing rapidly digestible protein also provides amino acids to support muscle protein synthesis for growth and rebuild. Soy has a complete amino acid profile to which we have added additional leucine to make the formulation even more effective. Leucine is an amino acid which is known to switch on the signalling for muscle protein synthesis, amplifying the affect. This updated formulation of SiS REGO Rapid Recovery delivers an optimal protein serving size of 20g, including 2g of leucine.

      Recommended Usage

      Consume 1 x 50g serving of SiS REGO Rapid Recovery within 30 minutes of completing your training session. This product is designed to be mixed with 500ml of water, mixing it with milk will slow down the absorption rate.

      Nutritional Information:

      Typical values per 50g serving:

      • Energy: 782kj/184kcal
      • Protein: 20g
      • Carbohydrate: 23g
      • Of which sugars: 5.1g
      • Fat: 1.3g
      • Of which saturates: 0.2g
      • Fibre: 0.3g
      • Salt: 1.0g

      Vitamins and Minerals: % RDA

      • Vitamin D: 1.0ug 20%
      • Vitamin E: 2.8mg 23%
      • Vitamin C: 24mg 30%
      • Thiamin: 0.5mg 45%
      • Riboflavin: 0.6mg 42%
      • Niacin: 7.3mg 45%
      • Vitamin B6: 0.8mg 57%
      • Folic Acid: 50ug 25%
      • Vitamin B12: 0.4ug 16%
      • Biotin: 18ug 36%
      • Pantothenic acid: 1.5mg 25%
      • Iron 2.4mg 17%
      • Magnesium: 57mg 15%
      • Zinc: 2.0mg 20%
      • Iodine: 23ug 15%
      • Potassium: 300mg 15%

      Contains a source of Phenylalanine and Soy. Suitable for Vegetarians.

        • Code
        • Product
        • RRP
        • SIS660A
        • REGO Rapid Rec 1.6kg Strawberry
        • £39.00
        • SIS660B
        • REGO Rapid Rec 1.6kg Banana
        • £39.00
        • SIS660C
        • REGO Rapid Rec 1.6kg Chocolate
        • £39.00
        • SIS660D
        • REGO Rapid Rec 1.6kg Vanilla
        • £39.00
    • GO Energy 1.6kg
    • Science In Sport
    • GO Energy 1.6kg

      High energy carbohydrate drink to help fuel before and during training or racing:

      • Approx 50 grams of carbohydrate per serving
      • Easy to digest
      • Ideal as part your carbohydrate loading regime

      About SiS GO Energy

      Our GO Energy drink provides an easily digestible and quick supply of carbohydrate for energy.

      SiS GO Energy is designed to be versatile so it can be mixed at various concentrations that are suited to your needs. As such, SiS GO Energy can be consumed as part of your carbohydrate loading strategy in the days and hours prior to your training or race whereby 48 grams of carbohydrate are delivered per serving. Alternatively, SiS GO Energy drink can be consumed during exercise itself in order to provide both energy and fluid.

      Why should I take SiS GO Energy?

      It is well documented that one of the major causes of fatigue in endurance exercise is depletion of our carbohydrate energy stores. As early as the 1960s, sports scientists therefore developed carbohydrate loading strategies whereby athletes increase the amount of carbohydrate they consume in the days leading up to their event in order to increase our store of muscle glycogen. SiS GO Energy therefore provides a highly practical solution to achieve increased carbohydrate intake (and helps complement high carbohydrate food intake) in order to boost our muscle glycogen stores prior to training or racing. SiS GO Energy can also be consumed during exercise to provide a quick supply of energy to ensure additional carbohydrate delivery during exercise. Finally, SiS GO Energy could also be consumed after training or racing in order to help promote recovery of muscle glycogen stores so that you are fuelled and ready for your next hard training session or race.

      Recommended Usage

      As part of your carbohydrate loading strategy, consume up to 4 servings per day with or between meals to help complement a high carbohydrate intake from food sources. To further boost muscle glycogen stores prior to exercise, SiS GO Energy could also be consumed with SiS GO Bars. To provide both optimal energy and hydration during exercise, SiS GO Electrolyte is superior to SIS GO Energy.

      Nutritional Information:

      Typical values per 50g serving

      • Energy: 795kj/187kcal
      • Protein: 0.0g
      • Carbohydrate: 47g
      • Of which sugars: 3.5g
      • Fat: 0.0g
      • Of which saturates: 0.0g
      • Fibre: 0.0g
      • Sodium: 0.0g

      Contains a source of Phenylalanine - Suitable for vegans - Made in the UK.

        • Code
        • Product
        • RRP
        • SIS160A
        • GO Energy 1.6kg Lemon
        • £26.00
        • SIS160B
        • GO Energy 1.6kg Blackcurrant
        • £26.00
        • SIS160C
        • GO Energy 1.6kg Orange
        • £26.00
    • GO Electrolyte 1.6kg
    • Science In Sport
    • GO Electrolyte 1.6kg

      Carbohydrate electrolyte drink to help fuel and hydrate during training or racing:

      • 36 grams of carbohydrate per 500 ml serving
      • High in sodium to promote hydration
      • Delivers energy and fluid fast

      About SiS GO Electrolyte

      SiS GO Electrolyte contains a blend of an easily digestible and quick supply of carbohydrate for energy as well as important electrolytes (such as sodium) that are required to promote optimal hydration. SiS GO Electrolyte is mixed at appropriate concentrations of carbohydrate (i.e. 36 grams of carbohydrate mixed as a 6% solution), sodium (20 mmol/L) and fluid (a 500 ml serving) in order to achieve the combined aims of both carbohydrate delivery and hydration.

      Why should I consume SiS GO Electrolyte?

      It is well documented that both carbohydrate depletion and dehydration are two of the major causes of fatigue in endurance exercise. In addition to ensuring optimal carbohydrate stores and hydration status before exercise, delivering additional carbohydrate and fluid during exercise is known to improve performance, race times and delay the onset of fatigue. Common mistakes made by endurance athletes are to consume too much carbohydrate at inappropriate concentrations (such that it can not be readily absorbed) or too little carbohydrate at low concentrations which although will increase fluid delivery will compromise carbohydrate delivery. As such, SiS GO Electrolyte represents a product that is formulated according to scientific research so as to achieve the right balance of both carbohydrate and fluid delivery. SiS GO Electrolyte therefore represents a strategic approach to offset the negative effects of carbohydrate depletion and dehydration on your performance.

      Recommended Usage

      Consume 500-1000 ml of SiS GO Electrolyte per hour during exercise in order to achieve both carbohydrate delivery and promote hydration. If it is not practical to consume this amount of fluid during exercise or the environmental temperatures do not require large fluid intakes, SiS GO Electrolyte could be consumed alongside the SiS GO Gel and GO Bar range in order to ensure appropriate carbohydrate intakes at the rate of 60 grams per hour.

      Nutritional Information:

      Typical values per 40g serving

      • Energy: 623kj/146kcal
      • Protein: 0.0g
      • Carbohydrate: 37g
      • Of which sugars: 6.7g
      • Fat: 0.0g
      • Of which saturates: 0.0g
      • Fibre: 0.0g
      • Sodium: 20mmol/ 0.2g

      Vitamins and Minerals: % RDA

      • Calcium: 1.3mmol/ 3%
      • Magnesium: 5mg 0.4mmol/ 1%
      • Potassium: 60mg 3.1mmol/ 3%

      Contains a source of Phenylalanine - Suitable for vegans - Made in the UK

        • Code
        • Product
        • RRP
        • SIS360A
        • GO Electrolyte 1.6kg Lemon & Lime
        • £25.99
        • SIS360B
        • GO Electrolyte 1.6kg Blackcurrant
        • £25.99
        • SIS360C
        • GO Electrolyte 1.6kg Tropical
        • £25.99
    • Endurance Pack with Bottle
    • Science In Sport
    • Endurance Pack with Bottle

      When you commit so much time, energy and determination to being the best you can be, you want a nutrition partner that truly understands endurance sport - one that you can trust to provide the best products and expert guidance.

      With two decades of science behind us, Science in Sport's nutrition products are designed to help you train, perform and recover quicker.

      Get ready for your New Year training with our SiS Endurance Pack, which helps make it easier for you to experience advanced endurance nutrition.

      SiS is used by elite athletes who accept only the best - including the leading Pro-cycling teams, World and Olympic champions.

      Contains assorted flavours:

      • 2 x SiS GO Isotonic Gels
      • 2 x SiS GO Energy Sachets
      • 2 x SiS GO Electrolyte Sachets
      • 2 x SiS REGO Rapid Recovery Sachets
      • 2 x SiS GO Energy 40g Bars
      • 1 x 800ml SiS bottle
        • Code
        • Product
        • RRP
        • SIS900
        • Endurance Pack Various +Bottle
        • £14.29
    • REGO Rapid Recovery 500g
    • Science In Sport
    • REGO Rapid Recovery 500g

      High GI carbohydrate and protein formula to aid rapid recovery after exercise:

      • Optimal protein serving size of 20g with 2g of leucine to promote the rebuilding of muscle tissue
      • Helps replenish your energy stores fast
      • Ideal for lactose intolerant individuals
      • The original complete recovery product

      About SiS REGO Rapid Recovery

      SiS REGO Rapid Recovery contains a blend of easily digestible carbohydrates, protein, and electrolytes with vitamins & minerals to provide a complete recovery product to be consumed immediately after exercise. Rapid replenishment of your glycogen stores and the provision of protein helps you to get the most from your training and prepare you for your next session.

      Benefits of SiS REGO Rapid Recovery?

      Carbohydrate is your bodies main fuel for moderate to high intensity exercise. Even if you fuel well during training you can still only absorb around 60g of carbohydrate per hour, meaning that demand will outstrip the supply of energy. This shortfall is met by using your glycogen stores, but these must be replenished after training if you are to perform well in your next session.

      Providing rapidly digestible protein also provides amino acids to support muscle protein synthesis for growth and rebuild. Soy has a complete amino acid profile to which we have added additional leucine to make the formulation even more effective. Leucine is an amino acid which is known to switch on the signalling for muscle protein synthesis, amplifying the affect. This updated formulation of SiS REGO Rapid Recovery delivers an optimal protein serving size of 20g, including 2g of leucine.

      Recommended Usage

      Consume 1 x 50g serving of SiS REGO Rapid Recovery within 30 minutes of completing your training session. This product is designed to be mixed with 500ml of water, mixing it with milk will slow down the absorption rate.

      Nutritional Information:

      Typical values per 50g serving:

      • Energy: 782kj/184kcal
      • Protein: 20g
      • Carbohydrate: 23g
      • Of which sugars: 5.1g
      • Fat: 1.3g
      • Of which saturates: 0.2g
      • Fibre: 0.3g
      • Salt: 1.0g

      Vitamins and Minerals: % RDA

      • Vitamin D: 1.0ug 20%
      • Vitamin E: 2.8mg 23%
      • Vitamin C: 24mg 30%
      • Thiamin: 0.5mg 45%
      • Riboflavin: 0.6mg 42%
      • Niacin: 7.3mg 45%
      • Vitamin B6: 0.8mg 57%
      • Folic Acid: 50ug 25%
      • Vitamin B12: 0.4ug 16%
      • Biotin: 18ug 36%
      • Pantothenic acid: 1.5mg 25%
      • Iron 2.4mg 17%
      • Magnesium: 57mg 15%
      • Zinc: 2.0mg 20%
      • Iodine: 23ug 15%
      • Potassium: 300mg 15%

      Contains a source of Phenylalanine and Soy. Suitable for Vegetarians.

        • Code
        • Product
        • RRP
        • SIS650A
        • REGO Rapid Rec 500g Strawberry
        • £13.25
        • SIS650B
        • REGO Rapid Rec 500g Banana
        • £13.25
        • SIS650C
        • REGO Rapid Rec 500g Chocolate
        • £13.25
        • SIS650D
        • REGO Rapid Rec 500g Vanilla
        • £13.25
    • GO Energy 500g
    • Science In Sport
    • GO Energy 500g

      High energy carbohydrate drink to help fuel before and during training or racing:

      • Approx 50 grams of carbohydrate per serving
      • Easy to digest
      • Ideal as part your carbohydrate loading regime

      About SiS GO Energy

      Our GO Energy drink provides an easily digestible and quick supply of carbohydrate for energy.

      SiS GO Energy is designed to be versatile so it can be mixed at various concentrations that are suited to your needs. As such, SiS GO Energy can be consumed as part of your carbohydrate loading strategy in the days and hours prior to your training or race whereby 48 grams of carbohydrate are delivered per serving. Alternatively, SiS GO Energy drink can be consumed during exercise itself in order to provide both energy and fluid.

      Why should I take SiS GO Energy?

      It is well documented that one of the major causes of fatigue in endurance exercise is depletion of our carbohydrate energy stores. As early as the 1960s, sports scientists therefore developed carbohydrate loading strategies whereby athletes increase the amount of carbohydrate they consume in the days leading up to their event in order to increase our store of muscle glycogen. SiS GO Energy therefore provides a highly practical solution to achieve increased carbohydrate intake (and helps complement high carbohydrate food intake) in order to boost our muscle glycogen stores prior to training or racing. SiS GO Energy can also be consumed during exercise to provide a quick supply of energy to ensure additional carbohydrate delivery during exercise. Finally, SiS GO Energy could also be consumed after training or racing in order to help promote recovery of muscle glycogen stores so that you are fuelled and ready for your next hard training session or race.

      Recommended Usage

      As part of your carbohydrate loading strategy, consume up to 4 servings per day with or between meals to help complement a high carbohydrate intake from food sources. To further boost muscle glycogen stores prior to exercise, SiS GO Energy could also be consumed with SiS GO Bars. To provide both optimal energy and hydration during exercise, SiS GO Electrolyte is superior to SIS GO Energy.

      Nutritional Information:

      Typical values per 50g serving

      • Energy: 795kj/187kcal
      • Protein: 0.0g
      • Carbohydrate: 47g
      • Of which sugars: 3.5g
      • Fat: 0.0g
      • Of which saturates: 0.0g
      • Fibre: 0.0g
      • Sodium: 0.0g

      Contains a source of Phenylalanine - Suitable for vegans - Made in the UK.

        • Code
        • Product
        • RRP
        • SIS150A
        • GO Energy 500g Lemon
        • £11.00
        • SIS150B
        • GO Energy 500g Blackcurrant
        • £11.00
        • SIS150C
        • GO Energy 500g Orange
        • £11.00
        • SIS150E
        • GO Energy 500g Elderberry
        • £11.00
    • GO Electrolyte 500g
    • Science In Sport
    • GO Electrolyte 500g

      Carbohydrate electrolyte drink to help fuel and hydrate during training or racing:

      • 36 grams of carbohydrate per 500 ml serving
      • High in sodium to promote hydration
      • Delivers energy and fluid fast

      About SiS GO Electrolyte

      SiS GO Electrolyte contains a blend of an easily digestible and quick supply of carbohydrate for energy as well as important electrolytes (such as sodium) that are required to promote optimal hydration. SiS GO Electrolyte is mixed at appropriate concentrations of carbohydrate (i.e. 36 grams of carbohydrate mixed as a 6% solution), sodium (20 mmol/L) and fluid (a 500 ml serving) in order to achieve the combined aims of both carbohydrate delivery and hydration.

      Why should I consume SiS GO Electrolyte?

      It is well documented that both carbohydrate depletion and dehydration are two of the major causes of fatigue in endurance exercise. In addition to ensuring optimal carbohydrate stores and hydration status before exercise, delivering additional carbohydrate and fluid during exercise is known to improve performance, race times and delay the onset of fatigue. Common mistakes made by endurance athletes are to consume too much carbohydrate at inappropriate concentrations (such that it can not be readily absorbed) or too little carbohydrate at low concentrations which although will increase fluid delivery will compromise carbohydrate delivery. As such, SiS GO Electrolyte represents a product that is formulated according to scientific research so as to achieve the right balance of both carbohydrate and fluid delivery. SiS GO Electrolyte therefore represents a strategic approach to offset the negative effects of carbohydrate depletion and dehydration on your performance.

      Recommended Usage

      Consume 500-1000 ml of SiS GO Electrolyte per hour during exercise in order to achieve both carbohydrate delivery and promote hydration. If it is not practical to consume this amount of fluid during exercise or the environmental temperatures do not require large fluid intakes, SiS GO Electrolyte could be consumed alongside the SiS GO Gel and GO Bar range in order to ensure appropriate carbohydrate intakes at the rate of 60 grams per hour.

      Nutritional Information:

      Typical values per 40g serving

      • Energy: 623kj/146kcal
      • Protein: 0.0g
      • Carbohydrate: 37g
      • Of which sugars: 6.7g
      • Fat: 0.0g
      • Of which saturates: 0.0g
      • Fibre: 0.0g
      • Sodium: 20mmol/ 0.2g

      Vitamins and Minerals: % RDA

      • Calcium: 1.3mmol/ 3%
      • Magnesium: 5mg 0.4mmol/ 1%
      • Potassium: 60mg 3.1mmol/ 3%

      Contains a source of Phenylalanine - Suitable for vegans - Made in the UK

        • Code
        • Product
        • RRP
        • SIS350A
        • GO Electrolyte 500g Lemon & Lime
        • £10.99
        • SIS350B
        • GO Electrolyte 500g Blkcurrant
        • £10.99
        • SIS350C
        • GO Electrolyte 500g Tropical
        • £10.99
        • SIS350D
        • GO Electrolyte 500g Raspberry
        • £10.99
    • GO Hydro+ Caffeine
    • Science In Sport
    • GO Hydro+ Caffeine

      Low-calorie high electrolyte effervescent tablet to hydrate during training or racing:

      • Simply drop in water to provide a high electrolyte drink
      • High in sodium to help promote hydration
      • When hydration is required without the added calories

      About SiS GO Hydro

      SiS GO Hydro represents a cutting edge and scientifically based formulation that is designed to ensure you are effectively hydrated to produce your best performance. As an effervescent tablet that readily dissolves in plain water, it represents a highly practical approach (simply drop one tablet in your 500 ml water bottle) to ensure that all of your electrolyte and fluid requirements are met in its most simple format. SiS GO Hydro is a practical strategy to ensure hydration without the calories.

      Why should I take SiS GO Hydro?

      During moderate to intense exercise, we may produce 1-2 litres (L) of sweat (that contains both fluid and important electrolytes) per hour depending on the exact environmental conditions. If such fluid losses are not replaced at an appropriate rate, dehydration occurs and performance can be impaired. In a dehydrated state, our body temperature rises, our heart rate increases, we deplete carbohydrate stores quicker and we perceive the exercise to be more intense. In essence, we have to work so much harder just to perform at the same speed or power output and thus, dehydration is considered a major cause of fatigue. In the context of maintaining hydration status, sodium is the most important electrolyte as it helps to stimulate thirst, improve fluid palatability and promote fluid absorption and retention. SiS GO Hydro meets your sodium requirements in an appropriate amount (0.7 grams per L) and concentration (30 mmol/L) that is scientifically proven to produce superior hydration compared with plain water.

      Recommended Usage

      To ensure hydration prior to training or racing, consume at least 500 ml of GO Hydro approximately 3-4 hours prior to your event with a further 250-500 ml at 2 hours prior to starting. During exercise itself, traditional guidelines advise a drinking strategy that prevents dehydration equating to > 2% loss in body mass. In practice, such a drinking strategy usually equates to 500 ml per hour and depending on the environmental conditions, your thirst will likely determine if your body requires more. If aiming to combine hydration and energy delivery, SiS GO Energy could be combined with the SiS GO Gels and GO Bar range to ensure both adequate carbohydrate and fluid delivery during exercise.

      Nutritional Information:

      Typical values per 4.5g tablet

      • Energy: 36.8kj/8.8kcal
      • Protein: 0.0g
      • Carbohydrate: 0.8g
      • Of which sugars: 0.1g
      • Fat: 0.0g
      • Of which saturates: 0.0g
      • Fibre: 0.2g
      • Sodium: 30mmol/l 0.3

      Suitable for vegans

        • Code
        • Product
        • RRP
        • SIS400C
        • GO Hydro+ Caffeine 8 x 20 x 4g Cola
        • £6.99
    • GO Hydro Effervescent Tablet
    • Science In Sport
    • GO Hydro Effervescent Tablet

      Low-calorie high electrolyte effervescent tablet to hydrate during training or racing:

      • Simply drop in water to provide a high electrolyte drink
      • High in sodium to help promote hydration
      • When hydration is required without the added calories

      About SiS GO Hydro

      SiS GO Hydro represents a cutting edge and scientifically based formulation that is designed to ensure you are effectively hydrated to produce your best performance. As an effervescent tablet that readily dissolves in plain water, it represents a highly practical approach (simply drop one tablet in your 500 ml water bottle) to ensure that all of your electrolyte and fluid requirements are met in its most simple format. SiS GO Hydro is a practical strategy to ensure hydration without the calories.

      Why should I take SiS GO Hydro?

      During moderate to intense exercise, we may produce 1-2 litres (L) of sweat (that contains both fluid and important electrolytes) per hour depending on the exact environmental conditions. If such fluid losses are not replaced at an appropriate rate, dehydration occurs and performance can be impaired. In a dehydrated state, our body temperature rises, our heart rate increases, we deplete carbohydrate stores quicker and we perceive the exercise to be more intense. In essence, we have to work so much harder just to perform at the same speed or power output and thus, dehydration is considered a major cause of fatigue. In the context of maintaining hydration status, sodium is the most important electrolyte as it helps to stimulate thirst, improve fluid palatability and promote fluid absorption and retention. SiS GO Hydro meets your sodium requirements in an appropriate amount (0.7 grams per L) and concentration (30 mmol/L) that is scientifically proven to produce superior hydration compared with plain water.

      Recommended Usage

      To ensure hydration prior to training or racing, consume at least 500 ml of GO Hydro approximately 3-4 hours prior to your event with a further 250-500 ml at 2 hours prior to starting.

      During exercise itself, traditional guidelines advise a drinking strategy that prevents dehydration equating to > 2% loss in body mass. In practice, such a drinking strategy usually equates to 500 ml per hour and depending on the environmental conditions, your thirst will likely determine if your body requires more.

      If aiming to combine hydration and energy delivery, SiS GO Energy could be combined with the SiS GO Gels and GO Bar range to ensure both adequate carbohydrate and fluid delivery during exercise.

      Nutritional Information:

      Typical values per tablet 4.5g

      • Energy: 36.8kj/8.8kcal
      • Protein: 0.0g
      • Carbohydrate: 0.8g
      • of which sugars: 0.1g
      • Fat: 0.0g
      • of which saturates: 0.0g
      • Fibre: 0.2g
      • Sodium: 30mmol/l 0.3

      Vitamins and Mineral % RDA

      • Thiamin: 0.2mg 18%
      • Riboflavin: 0.3mg 21%
      • Vitamin B6: 0.4mg 29%
      • Calcium: 102mg 5.11mmol/l 13%
      • Magnesium: 8.1mg 0.66mmol/l 2%
      • Zinc: 1.3mg 0.04mmol/l 13%
      • Potassium: 65mg 3.32mmol/l 3%

      Suitable for vegans

        • Code
        • Product
        • RRP
        • SIS400A
        • GO Hydro Tablet 8 x 20 x 4g Lemon
        • £6.99
        • SIS400B
        • GO Hydro Tablet 8 x 20 x 4g Berry
        • £6.99
    • GO+ Caffeine Gel 7x60ml Variety Pack
    • Science In Sport
    • GO+ Caffeine Gel 7x60ml Variety Pack

      Energy gel with 150mg added caffeine to provide a mental and physical boost:

      • 150mg of caffeine per gel
      • 22 grams of carbohydrate per gel
      • Formulation delivering energy fast and efficiently
      • Store in a cool dry place
      • Suitable for Vegans

      About SiS GO Energy + Caffeine Gel 150mg

      Caffeine has been repeatedly shown to improve performance by lowering your perception of effort by providing a boost just when you need it.

      SiS GO Energy+Caffeine 150mg in double espresso flavour provides a high dose of caffeine for high intensity races and long, tough days on the road.

      Benefits of the SiS GO Energy + Caffeine Gel 150mg

      When pushing yourself hard, your brain controls how fatigued you feel. Caffeine acts as a stimulant on the brain to lower your perception of effort, allowing you to keep pushing and maybe stretch yourself a little further.

      3-9mg of caffeine per kilo of body mass has been found to affect performance. 5 mg per kilo of body mass is thought to be beneficial for endurance performance, which for a 70kg person would equal 350mg.

      It can take 30-60 minutes after consumption for caffeine levels to peak in the blood, so if you are doing a short duration event (less than 60 minutes) you should take it before you start.

      If you are doing a much longer event, such as a marathon, 100 mile sportive, or half-ironman triathlon or longer, you should save your caffeine intake for the last two hours when your fatigue level is likely to catch up with you.

      Recommended Usage

      Consume 1 gel 1 hour before exercise for high intensity, short duration events to ensure the body starts with elevated caffeine levels. In longer duration events consume no more than 2 gels per day. Ensure you keep hydrated. This product is not intended for children, under 16's or pregnant women. Where hydration is important, SiS GO Energy + Caffeine Gel 150mg can also be consumed with SiS GO Hydro or GO Electrolyte to ensure a combination of energy, caffeine and fluid delivery during exercise.

      SiS GO+ Caffeine Gel Variety Pack contains:

      • SiS GO Plus Caffeine Gel Cola single x2
      • SiS GO Plus Caffeine Gel Double Espresso single x2
      • SiS GO Plus Caffeine Gel Berry single x3
        • Code
        • Product
        • RRP
        • SIS908
        • GO+ Caffeine Gel 7x60ml Pack
        • £6.49
    • Intro Pack With Bottle
    • Science In Sport
    • Intro Pack With Bottle

      The world of sports nutrition can be quite daunting - there are so many different products, brands and varieties to choose from. So to make it as simple as possible, SiS have put together the SiS Training Supplements Intro Pack. It contains three of their most popular products as well as a 600ml bottle for mixing your drinks in.

      SiS have selected these products to help you get the right nutrition before, during and after exercise:

      • SiS GO Electrolyte is designed to keep you properly fuelled and hydrated and should be taken before or during exercise.
      • SiS GO Energy is designed to keep your energy levels topped up before or during exercise.
      • SiS REGO Rapid Recovery is designed to be taken immediately after exercise. It contains protein, carbohydrates and electrolytes to help rebuild muscle and replenish energy stores as soon as you finish.
        • Code
        • Product
        • RRP
        • SIS903
        • Intro Pack 3 x Sachet + Bottle
        • £5.99
    • SiS Protein Shaker
    • Science In Sport
    • SiS Protein Shaker

      The Science in Sport shaker features the unique Easy Mix System. This has been designed to deliver fast and accurate mixing. The Easy Mix System enables you to pour specific amounts of Science in Sport powder directly into the shaker by using the pre-determined marks printed on the outside of the shaker.

      • Unique easy mix system
      • Wide mouth for easy drinking
      • Secure screw top
      • Dishwasher safe
        • Code
        • Product
        • RRP
        • SIS870C
        • SiS Protein Shaker Clear
        • £4.99
    • GO Iso Gel 7x 60ml Variety Pack
    • Science In Sport
    • GO Iso Gel 7x 60ml Variety Pack

      The world's first isotonic gel delivering energy fast:

      • 22 grams of carbohydrate per gel
      • Isotonic formulation delivers energy fast
      • Convenient gel format

      About SiS GO Isotonic Gels

      The SiS GO Isotonic Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrate for energy during exercise. SiS GO Isotonic Gels are designed to be consumed without water meaning that you can ensure rapid delivery of carbohydrate to your muscles without the feelings of being bloated that can sometimes occur with over-drinking.

      Why should I take this gel?

      Depleting your carbohydrate stores during exercise is one of the major causes of fatigue. In addition to ensuring optimal carbohydrate stores before exercise, delivering additional carbohydrate during exercise is known to improve performance, race times and delay the onset of fatigue. As such, SiS GO Isotonic Gels represent a highly practical solution to your in-training and competition fuelling strategy by providing you with a quick supply of 22 grams of carbohydrate per gel. Gels can easily be carried in your pocket or your race belt without the requirement for bulky bottles.

      Recommended Usage

      Consume 1-3 gels per hour to deliver approximately 60 grams of carbohydrate and maximize carbohydrate utilization rates. Where hydration is also important, SiS GO Isotonic Gels can also be consumed with SiS GO Hydro or with SiS GO Electrolyte to ensure a combination of both energy and fluid delivery during exercise.

      SiS GO Isotonic Energy Gel Variety Pack includes:

      • SiS GO Isotonic Gel Apple 60ml single x 1
      • SiS GO Isotonic Gel Lemon & Lime 60ml single x 1
      • SiS GO Isotonic Gel Orange 60ml single x 1
      • SiS GO Isotonic Gel Blackcurrant 60ml single x 1
      • SiS GO Isotonic Gel Tropical 60ml single x 1
      • SiS GO Isotonic Gel Pineapple 60ml single x 1
      • SiS GO Isotonic Gel Pink Grapefruit 60ml single x 1
        • Code
        • Product
        • RRP
        • SIS907
        • Go Iso Gel 7x60ml Variety Pack
        • £4.99
    • SiS Wide Neck Bottle 1L
    • Science In Sport
    • SiS Wide Neck Bottle 1L

      All Science in Sport bottles have a unique Easy Mix System. This has been designed to deliver fast and accurate mixing. The Easy Mix System enables you to pour specific amounts of Science in Sport powder directly into the bottle by using the pre-determined marks printed on the outside of the bottle.

      • Unique easy mix system
      • Soft rubber nozzle
      • Easy to grip bottle with ergonomic shape
      • Lockable valve for leakproof transport
      • Dishwasher safe
        • Code
        • Product
        • RRP
        • SIS810C
        • SiS Wide Neck Bottle 1L Clear
        • £4.75
    • SiS Bottle 800ml
    • Science In Sport
    • SiS Bottle 800ml

      The exclusive SiS Pro Yellow Cycling Bottle, as used by Sir Chris Hoy, features the unique Easy Mix System. This has been designed to deliver fast and accurate mixing. The Easy Mix System enables you to pour specific amounts of Science in Sport powder directly into the bottle by using the pre-determined marks printed on the outside of the bottle.

      • As used by Sir Chris Hoy
      • Unique easy mix system
      • Soft rubber nozzle
      • Easy to grip bottle with ergonomic shape
      • Lockable valve for leakproof transport
      • Dishwasher safe
        • Code
        • Product
        • RRP
        • SIS800C
        • SiS Bottle 800ml Clear
        • £4.19
        • SIS800Y
        • SiS Bottle 800ml Yellow
        • £4.19
    • SiS Wide Neck Bottle 600ml
    • Science In Sport
    • SiS Wide Neck Bottle 600ml

      All Science in Sport bottles have a unique Easy Mix System. This has been designed to deliver fast and accurate mixing. The Easy Mix System enables you to pour specific amounts of Science in Sport powder directly into the bottle by using the pre-determined marks printed on the outside of the bottle.

      • Unique easy mix system
      • Soft rubber nozzle
      • Easy to grip bottle with ergonomic shape
      • Lockable valve for leakproof transport
      • Dishwasher safe
        • Code
        • Product
        • RRP
        • SIS860C
        • SiS Wide Neck Bottle 600ml Clear
        • £3.69
    • REGO Protein Bar
    • Science In Sport
    • REGO Protein Bar

      High protein formula to promote training, adaptation and recovery:

      • Each bar contains 20 grams of easily digestible protein
      • A high quality blend of whey, casein and soy protein
      • Promotes the rebuild of muscle following exercise
      • Store in a cool dry place
      • Contains Milk, Soya, Gluten, (SIS755A Peanuts)

      About SiS Protein Bar

      SiS Protein Bars contain a blend of easily digestible proteins (20 grams of protein per bar) in the form of whey, casein and soy protein. Sports scientists are increasingly recognising the importance of consuming protein in close proximity to training sessions (i.e. before or after training) in order to maximize how our muscles adapt to training. The importance of protein is also often overlooked by endurance athletes and for this reason SiS Protein Bars provide an appropriate quantity of high quality protein for before or immediately post exercise.

      Benefits of the SiS Protein Bar

      Adapting to the demands of endurance training is facilitated by increased muscle protein synthesis whereby new proteins (such as enzymes involved in energy production and proteins which give muscle structure) are made in our muscles during the hours and days after each training session. As such, the muscle becomes reconditioned so that it can better withstand the physical demands that are placed upon it during the next training session. For optimal protein synthesis to occur, it is crucial that we consume high quality protein given that protein contains the building blocks (known as amino acids) to make new proteins. For this reason, SiS Protein Bars contain a blend of easily digestible proteins in the form of whey, casein and soy protein. This blend of high quality proteins acts as a trigger to stimulate the process of protein synthesis.

      Recommended Usage

      Consume one bar within 30-60 minutes before exercise and/or immediately post-exercise. SiS REGO Protein bars can also be used throughout the day between meals (such as mid-morning and mid-afternoon snacks) to provide a convenient way to increase daily protein intake.

      Nutritional Information:

      Typical values per 55g bar

      • Energy: 939kj/223kcal
      • Protein: 20g
      • Carbohydrate: 21g
      • of which sugars: 18g
      • Fat: 6.4g
      • of which saturates: 3.3g
      • Fibre: 0.4g
      • Sodium: 0.1g

      Contains Peanuts, Gluten, Soya and Milk

        • Code
        • Product
        • RRP
        • SIS755A
        • REGO Protein Bar 20 x 55g Chocolate & Peanut
        • £1.99
        • SIS755B
        • REGO Protein Bar 20 x 55g Chocolate & Mint
        • £1.99
    • REGO Rapid Recovery 50g
    • Science In Sport
    • REGO Rapid Recovery 50g

      High GI carbohydrate and protein formula to aid rapid recovery after exercise:

      • Optimal protein serving size of 20g with 2g of leucine to promote the rebuilding of muscle tissue
      • Helps replenish your energy stores fast
      • Ideal for lactose intolerant individuals
      • The original complete recovery product

      About SiS REGO Rapid Recovery

      SiS REGO Rapid Recovery contains a blend of easily digestible carbohydrates, protein, and electrolytes with vitamins & minerals to provide a complete recovery product to be consumed immediately after exercise. Rapid replenishment of your glycogen stores and the provision of protein helps you to get the most from your training and prepare you for your next session.

      Benefits of SiS REGO Rapid Recovery?

      Carbohydrate is your bodies main fuel for moderate to high intensity exercise. Even if you fuel well during training you can still only absorb around 60g of carbohydrate per hour, meaning that demand will outstrip the supply of energy. This shortfall is met by using your glycogen stores, but these must be replenished after training if you are to perform well in your next session.

      Providing rapidly digestible protein also provides amino acids to support muscle protein synthesis for growth and rebuild. Soy has a complete amino acid profile to which we have added additional leucine to make the formulation even more effective. Leucine is an amino acid which is known to switch on the signalling for muscle protein synthesis, amplifying the affect. This updated formulation of SiS REGO Rapid Recovery delivers an optimal protein serving size of 20g, including 2g of leucine.

      Recommended Usage

      Consume 1 x 50g serving of SiS REGO Rapid Recovery within 30 minutes of completing your training session. This product is designed to be mixed with 500ml of water, mixing it with milk will slow down the absorption rate.

      Nutritional information and ingredients will vary from product to product

      Nutritional Information:

      Typical values per 50g serving

      • Energy: 782kj/184kcal
      • Protein: 20g
      • Carbohydrate: 23g
      • of which sugars: 5.1g
      • Fat: 1.3g
      • of which saturates : 0.2g
      • Fibre: 0.3g
      • Salt: 1.0g

      Vitamins and Minerals: % RDA

      • Vitamin D: 1.0ug 20%
      • Vitamin E: 2.8mg 23%
      • Vitamin C: 24mg 30%
      • Thiamin: 0.5mg 45%
      • Riboflavin: 0.6mg 42%
      • Niacin: 7.3mg 45%
      • Vitamin B6: 0.8mg 57%
      • Folic Acid: 50ug 25%
      • Vitamin B12: 0.4ug 16%
      • Biotin: 18ug 36%
      • Pantothenic acid: 1.5mg 25%
      • Iron: 2.4mg 17%
      • Magnesium: 57mg 15%
      • Zinc: 2.0mg 20%
      • Iodine: 23ug 15%
      • Potassium: 300mg 15%

      Contains a source of Phenylalanine and Soy. Suitable for Vegetarians.

        • Code
        • Product
        • RRP
        • SIS600A
        • REGO Rapid Rec 18 x 50g Strawberry
        • £1.85
        • SIS600B
        • REGO Rapid Rec 18 x 50g Banana
        • £1.85
        • SIS600C
        • REGO Rapid Rec 18 x 50g Chocolate
        • £1.85
        • SIS600D
        • REGO Rapid Rec 18 x 50g Vanilla
        • £1.85
    • GO Plus Caffeine Gel
    • Science In Sport
    • GO Plus Caffeine Gel

      Energy gel with 150mg added caffeine to provide a mental and physical boost:

      • 150mg of caffeine per gel
      • 22 grams of carbohydrate per gel
      • Formulation delivering energy fast and efficiently
      • Store in a cool dry place
      • Suitable for Vegans

      About SiS GO Energy + Caffeine Gel 150mg

      Caffeine has been repeatedly shown to improve performance by lowering your perception of effort by providing a boost just when you need it.

      SiS GO Energy+Caffeine 150mg in double espresso flavour provides a high dose of caffeine for high intensity races and long, tough days on the road.

      Benefits of the SiS GO Energy + Caffeine Gel 150mg

      When pushing yourself hard, your brain controls how fatigued you feel. Caffeine acts as a stimulant on the brain to lower your perception of effort, allowing you to keep pushing and maybe stretch yourself a little further.

      3-9mg of caffeine per kilo of body mass has been found to affect performance. 5 mg per kilo of body mass is thought to be beneficial for endurance performance, which for a 70kg person would equal 350mg.

      It can take 30-60 minutes after consumption for caffeine levels to peak in the blood, so if you are doing a short duration event (less than 60 minutes) you should take it before you start.

      If you are doing a much longer event, such as a marathon, 100 mile sportive, or half-ironman triathlon or longer, you should save your caffeine intake for the last two hours when your fatigue level is likely to catch up with you.

      Recommended Usage

      Consume 1 gel 1 hour before exercise for high intensity, short duration events to ensure the body starts with elevated caffeine levels. In longer duration events consume no more than 2 gels per day. Ensure you keep hydrated. This product is not intended for children, under 16's or pregnant women. Where hydration is important, SiS GO Energy + Caffeine Gel 150mg can also be consumed with SiS GO Hydro or GO Electrolyte to ensure a combination of energy, caffeine and fluid delivery during exercise.

      Nutritional Information:

      Typical values per 60ml serving

      • Energy: 370kj/87kcal
      • Protein: 0.0g
      • Carbohydrate: 22g
      • Of which sugars: 0.7g
      • Fat: 0.0g
      • Of which saturates: 0.0g
      • Salt: 0.04g
      • Caffeine: 150mg

      High caffeine content: 150mg - Made in the UK. - This product is not intended for children or pregnant women. - Suitable for vegans

        • Code
        • Product
        • RRP
        • SIS550B
        • GO Plus Caffeine Gel 30 x 60ml Berry
        • £1.79
        • SIS550C
        • GO Plus Caffeine Gel 30 x 60ml Cola
        • £1.79
        • SIS550D
        • GO Plus Caffeine Gel 30 x 60ml Double Espresso
        • £1.79
    • GO Isotonic Gel
    • Science In Sport
    • GO Isotonic Gel

      The world's first isotonic gel delivering energy fast:

      • 22 grams of carbohydrate per gel
      • Isotonic formulation delivers energy fast
      • Convenient gel format

      About SiS GO Isotonic Gels

      The SiS GO Isotonic Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrate for energy during exercise. SiS GO Isotonic Gels are designed to be consumed without water meaning that you can ensure rapid delivery of carbohydrate to your muscles without the feelings of being bloated that can sometimes occur with over-drinking.

      Why should I take this gel?

      Depleting your carbohydrate stores during exercise is one of the major causes of fatigue. In addition to ensuring optimal carbohydrate stores before exercise, delivering additional carbohydrate during exercise is known to improve performance, race times and delay the onset of fatigue. As such, SiS GO Isotonic Gels represent a highly practical solution to your in-training and competition fuelling strategy by providing you with a quick supply of 22 grams of carbohydrate per gel. Gels can easily be carried in your pocket or your race belt without the requirement for bulky bottles.

      Recommended Usage

      Consume 1-3 gels per hour to deliver approximately 60 grams of carbohydrate and maximize carbohydrate utilization rates. Where hydration is also important, SiS GO Isotonic Gels can also be consumed with SiS GO Hydro or with SiS GO Electrolyte to ensure a combination of both energy and fluid delivery during exercise.

      Nutritional Information:

      Typical values per 60ml serving

      • Energy: 368kj/87kcal
      • Protein: 0.0g
      • Carbohydrate: 22g
      • Of which sugars: 0.7g
      • Fat: 0.0g
      • Of which saturates: 0.0g
      • Fibre: 0.1g
      • Sodium: 0.01g

      Suitable for vegans. Made in the UK

        • Code
        • Product
        • RRP
        • SIS500A
        • GO Isotonic Gel 30 x 60ml Orange
        • £1.40
        • SIS500B
        • GO Isotonic Gel 30 x 60ml Blackcurrant
        • £1.40
        • SIS500C
        • GO Isotonic Gel 30 x 60ml Tropical
        • £1.40
        • SIS500D
        • GO Isotonic Gel 30 x 60ml Lemon & Lime
        • £1.40
        • SIS500E
        • GO Isotonic Gel 30 x 60ml Pink Grapefruit
        • £1.40
        • SIS500F
        • GO Isotonic Gel 30 x 60ml Pineapple
        • £1.40
        • SIS500G
        • GO Isotonic Gel 30 x 60ml Apple
        • £1.40
    • GO Energy 50g
    • Science In Sport
    • GO Energy 50g

      High energy carbohydrate drink in sachets to help fuel before and during training or racing:

      • Approx 50 grams of carbohydrate per serving / sachet
      • Easy to digest
      • Ideal as part your carbohydrate loading regime

      About SiS GO Energy

      SiS GO Energy provides an easily digestible and quick supply of carbohydrate for energy. SiS GO Energy is designed to be versatile so it can be mixed at various concentrations that are suited to your needs. As such, SiS GO Energy can be consumed as part of your carbohydrate loading strategy in the days and hours prior to your training or race whereby 47 grams of carbohydrate are delivered per serving / sachet. Alternatively, SiS GO Energy can be consumed during exercise itself in order to provide both energy and fluid.

      Why should I take SiS GO Energy?

      It is well documented that one of the major causes of fatigue in endurance exercise is depletion of our carbohydrate energy stores. As early as the 1960s, sports scientists therefore developed carbohydrate loading strategies whereby athletes increase the amount of carbohydrate they consume in the days leading up to their event in order to increase our store of muscle glycogen. SiS GO Energy therefore provides a highly practical solution to achieve increased carbohydrate intake (and helps complement high carbohydrate food intake) in order to boost our muscle glycogen stores prior to training or racing. SiS GO Energy can also be consumed during exercise to provide a quick supply of energy to ensure additional carbohydrate delivery during exercise. Finally, SiS GO Energy could also be consumed after training or racing in order to help promote recovery of muscle glycogen stores so that you are fuelled and ready for your next hard training session or race.

      Recommended Usage

      As part of your carbohydrate loading strategy, consume up to 4 servings per day with or between meals to help complement a high carbohydrate intake from food sources. To further boost muscle glycogen stores prior to exercise, SiS GO Energy could also be consumed with SiS GO Bars. To provide both optimal energy and hydration during exercise, SiS GO Electrolyte is superior to SIS GO Energy.

      Nutritional Information:

      Typical values per 50g serving

      • Energy: 795kj/187kcal
      • Protein: 0.0g
      • Carbohydrate: 47g
      • Of which sugars: 3.5g
      • Fat: 0.0g
      • Of which saturates: 0.0g
      • Fibre: 0.0g
      • Sodium: 0.0g

      Contains a source of Phenylalanine - Suitable for vegans.

        • Code
        • Product
        • RRP
        • SIS118A
        • GO Energy 18 x 50g Lemon
        • £1.35
        • SIS118B
        • GO Energy 18 x 50g Blackcurrant
        • £1.35
        • SIS118C
        • GO Energy 18 x 50g Orange
        • £1.35
    • GO Electrolyte 40g
    • Science In Sport
    • GO Electrolyte 40g

      Carbohydrate electrolyte drink to help fuel and hydrate during training or racing:

      • 36 grams of carbohydrate per 500 ml serving
      • High in sodium to promote hydration
      • Delivers energy and fluid fast

      About SiS GO Electrolyte

      SiS GO Electrolyte contains a blend of an easily digestible and quick supply of carbohydrate for energy as well as important electrolytes (such as sodium) that are required to promote optimal hydration. SiS GO Electrolyte is mixed at appropriate concentrations of carbohydrate (i.e. 36 grams of carbohydrate mixed as a 6% solution), sodium (20 mmol/L) and fluid (a 500 ml serving) in order to achieve the combined aims of both carbohydrate delivery and hydration.

      Why should I consume SiS GO Electrolyte?

      It is well documented that both carbohydrate depletion and dehydration are two of the major causes of fatigue in endurance exercise. In addition to ensuring optimal carbohydrate stores and hydration status before exercise, delivering additional carbohydrate and fluid during exercise is known to improve performance, race times and delay the onset of fatigue. Common mistakes made by endurance athletes are to consume too much carbohydrate at inappropriate concentrations (such that it can not be readily absorbed) or too little carbohydrate at low concentrations which although will increase fluid delivery will compromise carbohydrate delivery. As such, SiS GO Electrolyte represents a product that is formulated according to scientific research so as to achieve the right balance of both carbohydrate and fluid delivery. SiS GO Electrolyte therefore represents a strategic approach to offset the negative effects of carbohydrate depletion and dehydration on your performance.

      Recommended Usage

      Consume 500-1000 ml of SiS GO Electrolyte per hour during exercise in order to achieve both carbohydrate delivery and promote hydration. If it is not practical to consume this amount of fluid during exercise or the environmental temperatures do not require large fluid intakes, SiS GO Electrolyte could be consumed alongside the SiS GO Gel and GO Bar range in order to ensure appropriate carbohydrate intakes at the rate of 60 grams per hour.

      Nutritional Information:

      Typical values per 40g serving

      • Energy: 623kj/146kcal
      • Protein: 0.0g
      • Carbohydrate: 37g
      • Of which sugars: 6.7g
      • Fat: 0.0g
      • Of which saturates: 0.0g
      • Fibre: 0.0g
      • Sodium: 20mmol/ 0.2g

      Vitamins and Minerals: % RDA

      • Calcium: 1.3mmol/ 3%
      • Magnesium: 5mg 0.4mmol/ 1%
      • Potassium: 60mg 3.1mmol/ 3%

      Contains a source of Phenylalanine - Suitable for vegans - Made in the UK

        • Code
        • Product
        • RRP
        • SIS318A
        • GO Electrolyte 18 x 40g Lemon & Lime
        • £1.35
        • SIS318B
        • GO Electrolyte 18 x 40g Blackcurrant
        • £1.35
        • SIS318C
        • GO Electrolyte 18 x 40g Tropical
        • £1.35
    • GO Energy Bar
    • Science In Sport
    • GO Energy Bar

      High energy carbohydrate bar to help fuel before training and races:

      • Over 40 grams of carbohydrate per bar
      • Made using natural fruit ingredients
      • Ideal as part your carbohydrate loading regime

      About SiS GO Energy Bars

      SiS GO Energy Bars provide a nutritious, easily digestible and high carbohydrate based snack that is made from real fruits and wholesome ingredients. SiS GO Energy bars are great for carbohydrate intake (44 grams), moderate in protein (8 grams) and low in fat (1 gram) and therefore provide a highly nutritious snack that can be used to increase the daily carbohydrate content of an athlete's diet.

      Why should I take SiS GO Energy Bars?

      It is well documented that one of the major causes of fatigue in endurance exercise is depletion of our carbohydrate energy stores. For this reason, the serious amateur or elite athlete should ensure a daily diet that is higher in carbohydrate content compared to the sedentary person so that training and competition is commenced with appropriate pre-exercise muscle glycogen stores.

      Recommended Usage

      Consume 1-3 bars per day as snacks between meals to achieve elevated carbohydrate intake. SIS GO Energy Bars are especially useful as part of a carbohydrate loading diet in the 2-3 days prior to competition and could also be consumed alongside SiS GO Energy.

      Nutritional Information:

      Typical values per 65g serving

      • Energy: 921kj/217kcal
      • Protein: 7.8g
      • Carbohydrate: 44g
      • Of which sugars: 18g
      • Fat: 1.3g
      • Of which saturates: 0.3g
      • Fibre: 1.1g
      • Sodium: 0.2g

      Contains Gluten - Soya - May contain pips and seeds - Suitable for vegetarians.

        • Code
        • Product
        • RRP
        • SIS265A
        • GO Energy Bar 24 x 65g Apple & Blackcurrant
        • £1.30
        • SIS265B
        • GO Energy Bar 24 x 65g Chewy Banana
        • £1.30
        • SIS265C
        • GO Energy Bar 24 x 65g Chocolate & Orange
        • £1.30
        • SIS265D
        • GO Energy Bar 24 x 65g Cherry Vanilla
        • £1.30
    • GO Energy Mini Bar
    • Science In Sport
    • GO Energy Mini Bar

      High energy carbohydrate bar to help fuel during training and races:

      • 25 grams of carbohydrate per bar
      • Made using natural fruit ingredients
      • Convenient size for in-racing fuelling

      About SiS GO Energy Bars Mini

      SiS GO Energy Bars provide a nutritious, easily digestible and high carbohydrate based snack that is made from real fruits and wholesome ingredients. Given the reduced size of the GO Energy Bars Mini (compared to the larger GO Energy Bars), they provide a highly practical and nutritious approach to provide carbohydrate during exercise. Indeed, they are high in carbohydrate (26 grams), moderate in protein (4.5 grams) and low in fat (2 grams) can easily be carried in your pocket or your race belt.

      Why should I take SiS GO Energy Bars Mini?

      Depleting your carbohydrate stores during exercise is one of the major causes of fatigue. In addition to ensuring optimal carbohydrate stores before exercise, delivering additional carbohydrate during exercise is known to improve performance, race times and delay the onset of fatigue. In this regard, research has shown that carbohydrate from gels, drinks and bars can all be utilized at similar rates and as such, SiS GO Energy Bars Mini provide an alternative format of carbohydrate to consume during exercise. The use of bars during exercise in addition to gels and drinks can therefore help alleviate boredom with your training and racing fueling strategy without compromising performance.

      Recommended Usage

      Consume 1-2 bars per hour during exercise to help maximize carbohydrate utilization rates. To achieve maximal carbohydrate utilziation rates of 60 grams per hour, SiS GO Energy Bars Mini can be consumed alongside the SiS GO Gel range as well as the SiS GO Energy range to ensure the dual aims of both carbohydrate delivery and hydration.

      Nutritional Information:

      Typical values per 40g serving

      • Energy: 583kj/139kcal
      • Protein: 4.5g
      • Carbohydrate: 26g
      • Of which sugars: 12g
      • Fat: 2g
      • Of which saturates: 0.3g
      • Fibre: 1.0g
      • Sodium: 0.1g

      Contains Gluten - Soya - May contain pips and seeds - Suitable for vegetarians.

        • Code
        • Product
        • RRP
        • SIS240A
        • GO Energy Mini Bar 30 x 40g Apple & Blackcurrant
        • £1.10
        • SIS240B
        • GO Energy Mini Bar 30 x 40g Banana Fudge
        • £1.10
        • SIS240C
        • GO Energy Mini Bar 30 x 40g Chocolate Fudge
        • £1.10
        • SIS240D
        • GO Energy Mini Bar 30 x 40g Blueberry
        • £1.10
        • SIS240E
        • GO Energy Mini Bar 30 x 40g Red Berry
        • £1.10