Here we will cover the three most common types of protein powders available, Whey Proteins, Blended Protein and Casein Protein.
The undisputed king of proteins. Here’s why: whey proteins are quickly and easily digested (hence the “fast-acting” description that they’re often given), they are loaded with Essential Amino Acids (EAAs)–including the three Branched Chain Amino Acids (BCAAs), and they contain subcomponents (microfractions) that appear to provide benefits above and beyond amino acids and elemental nitrogen. Whey proteins are available in several forms. The most basic is whey concentrate. Whey protein isolates have much of the fat, lactose and other undesirable elements ‘isolated’ out. Whey peptides have been hydrolyzed, or broken down, for even faster digestion. So the purest and fastest digesting whey proteins you can buy are hydrolyzed whey protein isolates.
About 80% of the protein in milk is casein. Often referred to as a “slower-acting” or “time-released” protein because it is digested and absorbed much more slowly than other proteins, casein proteins are especially useful when taken at bedtime and during other prolonged periods without eating.
Blended ProteinsIf you can only afford one type of protein, consider going with a blend. Combining faster-, intermediate-, and slower-protein sources, blended proteins give you more sustained protein digestion than single-source proteins like whey, casein, or egg.