Isostar's carbohydrate sources are sucrose and maltodextrins.
The orange-flavoured drink is tart rather than overly sweet. Large quantities are considered a banned substance, along with drugs, in many competitive sports. Do-it-yourself energy and fluid replacers are cheaper than manufactured ones and equally as effective, say the experts.
Unlike regular Lucozade and Lucozade Energy, the sports range is isotonic.
Also contains more sodium than other drinks which not only replaces that lost in sweat but encourages you to drink more. LUCOZADE SPORT (stockists 01) Concentrate, £4.49 per one litre bottle which makes 6 litres, or Still Orange or Lemon 79p per 500ml bottle; 140 calories and 32g of carbohydrate per 500ml serving In addition to its ready-made sports drinks, Lucozade has launched this concentrate drink which is mixed with water, like squash, and, once made up, can be kept in the fridge for up to 24 hours.Many sports drinks contain small amounts of sodium, which enhances fluid absorption.Studies show that marathon runners who consume commercial drinks with a little added sodium have a higher total fluid intake (beneficial in such a tough sport) than those who drink plain water. Most of the popular brands are isotonic -- that is, they have the same osmolality (or concentration of dissolved particles), as the body's own fluids, are easily absorbed and designed to be drunk both before and during exercise.BOOTS ISOTONIC 59p per 330ml pouch; 56.1 calories and 11g of carbohydrate per 330ml serving Much of the sweetness in this drink comes from orange and mandarin juices, as well as fructose and the artificial sweetener aspartame.As a result, it has an unpleasant, syrupy taste which makes it less thirst-quenching than some of the other drinks tested.An isotonic drink with the usual blend of simple and complex carbohydrate to help provide sustained energy, but the first to add the ingredient 'Energy Smart', a sweetener containing grains blended with unrefined sugar from fruit juice.