Endurance

Use the carbohydrate per serving from the nutrition table: for a gel the serving is one gel, for a powder it is the scoop mixed with the amount of water the label states. Sugars are part of the carbohydrate figure and appear on a separate line. A tub holds many servings, and a box of gels holds as many servings as it has gels.

It can be either. EU rules allow values per 100 g of the product as sold, per 100 ml of the prepared drink when preparation instructions are given, and per serving. Check the column headings before comparing two products, because 100 g of powder and 100 ml of drink are not the same amount.

The label states how much caffeine one tablet contains, how many tablets make up a daily serving and the caffeine warning required for foods with added caffeine. Other products used on the same day may add caffeine as well, so read their labels too and keep to the maximum stated on each pack.