BCAA Powder

The numbers compare the weight of leucine, isoleucine and valine, in that order. At 2:1:1 leucine weighs twice as much as each of the other two, at 4:1:1 four times as much and at 10:1:1 ten times as much. A ratio is only a proportion, so read the table for the grams of each amino acid per serving.

Work out the servings per tub by dividing the net weight by the serving size in grams, then divide the price by that number. Next compare the grams of the three amino acids in one serving. Tubs here range from about 200 g to 1.3 kg, so weight alone says little: a larger serving size means fewer servings in the same tub.

Read the label of the exact flavour. Allergens are emphasised in the ingredient list, and a vegan or vegetarian statement, if the product makes one, is printed on the label. Flavourings and sweeteners appear in the same list, and two flavours of one product can have different ingredient lists.