Protein supplements are the most important nutrient for anyone on a
training program so investing in a quality protein powder is essential.
Protein choices include: Whey Protein, Milk or casein protein, Egg
Protein, Protein Blends (combining whey, egg, milk and other proteins in
one product) Whey Blends (combining different types of whey protein
such as whey concentrate, whey isolate, and whey hydrolysate). Generally
speaking, it is best to have whey protein shakes before and after
training (if no other pre or post workout supplements featuring protein
are used) and to use casein protein or casein/whey blends at other
times. This is because whey protein is best used when fast absorption is
required and a casein product or blended product is best when sustained
release of protein is the major priority.