High5 IsoGel is not really a gel at all. Despite the name, it's a liquid. So it's a carb-based sports drink in a gel-style sachet. Thus, it delivers energy and hydration - unlike normal gels where you need to take on liquid separately - but it's of questionable benefit for most road cyclists.
Each sachet of IsoGel is 60g. According to the packaging, each gel contains 26g of carbohydrate, providing 104 kcal of energy. According to the High5 website, each gel contains 22g of carb, providing 88 kcal.
High5 Energy Gels are smaller than the gels available from some other brands, but they taste good and slip down easily - and certainly deliver the energy you need on a long hard bike ride.
Each sachet contains 38g of gel. According to the packaging, the main ingredients are maltodextrin (which the body breaks down into glucose), water and simple glucose. There's also some salt and flavouring. This mixture provides 20g of carbohydrate and 80 kcal of energy.
High5 Zero electrolyte drink comes as a tube of 20 tablets. You mix one or two with water in your bottle and drink it to replace minerals in the body lost via sweat, which helps to prevent muscle cramp. We reviewed this product back in 2010, but it's recently been re-launched with a high-profile advertising campaign that heavily promotes this drink's ability to help you burn more fat.
High5 2:1 Energy Source is carbohydrate-based drink powder, available in small sachets or big tubs. We reviewed this product back in 2010, and some of what we said still holds. Since then, it's not clear if the actual formula of the drink has changed, but the product has been re-launched with a 'new generation' tag, and new claims regarding performance that are quite astounding.
Unlike most other types of energy food which are solely carbohydrate-based, the 4:1 Advance Training Bar is, as the name implies, 4 parts carbo to 1 part protein.