In short:An isotonic gel with mild flavours. The use of maltodextrins and gelling agents mean this is a sustained-release energy gelFlavours: Blackcurrant / orange / tropicalTypical Ingredients:Water, maltodextrin, natural flavours, gelling agents

In short:Designed for when you need rehydration and energy, this carbohydrate fuel contains electrolytes, including sodium, calcium and potassiumFlavours: Lemon & Lime / blackcurrant / watermelon / tropicalTypical Ingredients: Maltodextrin (produced

. Whether or not they have any effect on performance is, I think, still a matter of faith rather than science! Overall: The only "energy bar" I use. Laura Hudson 2: CHEWY AND YUMMY! Strengths: They taste really good and are ideal for taking on long days out

. Trust me I am a final year sports science student. The Silent 'Night' Assassin: GREAT FOR LOADING OF THOSE CARBS Strengths: Weaknesses: Overall: A taste that takes a little getting used to, but you do and after a while start to quite like it. I also

Flavours: Devon Toffee, Strawberry Energy : 369 Carbohydrate: 61 Protein: 29 Fat : 1.2 Typical Ingredients: Maltodextrin (produced by partial hydrolysis of a special variety of maize, 98% glucose polymers), whey protein isolate, fructose, vitamins

), minerals and vitamins. Full Review: Recovery drink for use at night. REGO Nocté is part of Science in Sport's PKS nutrition system and  contains an atabolic slow-release protein blend of Magnesium Caseinate, whey protein and glutamine peptide. Lee Grant

Flavours: Banana, Chocolate, Strawberry, Vanilla Energy : 314 Carbohydrate: 55 Protein: 27 Sodium: 578 Potassium: 223 Typical Ingredients: Maltodextrin (produced by partial hydrolysis of a special variety of maize, 98% glucose polymers), soya