Protein powders are very popular among health conscious people. There are many types of protein powders, made from a wide variety of sources. Protein powders are concentrated sources of protein from animal or plant foods, such as dairy, eggs, legumes, rice or peas.
There are three common forms:
Protein concentrates: These are produced by extracting protein from whole food using heat and acid or enzymes. They typically contain about 60–80% protein, with the remaining 20–30% of calories from fat and carbs.
Protein isolates: These go through another filtering step that removes additional fat and carbs, further concentrating the protein. Protein isolate powders contain about 90–95% protein.
Protein hydrolysates: These are produced by further heating with acid or enzymes, which breaks the bonds between amino acids. This allows your body to absorb them more quickly, and your muscles to take them up more easily.