Protein is made up of individual amino acids that the body uses to build lean muscle tissue, produce enzymes, hormones, and immune system cells, and maintain strong bones. To maximize protein’s benefits, we need to consume a high-quality source daily. This includes complete proteins, such as whey, or a combination of complementary plant proteins that provide all of the essential amino acids. Natural Factors’ range of protein formulas are made with quality sources of whey and vegan proteins.