When looking for a protein powder, choose one that is low in carbohydrates and fat and high in protein. Most meal replacement powders contain too many calories and the carbohydrates in these powders will come from some type of sugar. Calories will vary from company to company, so you will need to adapt the calories given for protein powder based on your individual calorie. Higher quality powders range in calories from 120 – 140 calories and 2 – 3 grams of fat and carbohydrates.
Isolates generally fit these suggestions. One characteristic to avoid is protein that adds extra amino acids to enhance its formula. This is a cheap method to enhance an inferior protein powder base. We prefer whey proteins such as Allmax IsoFlex and Cellucor Cor-Whey.