Whey protein is not a by-product of making cheese as originally thought, but rather, it is a co-product of the cheese-making process. Whey protein isolate is the most pure form of protein there is, containing almost no fat or lactose. Whey protein is a high-quality complete protein, with all the essential amino acids. Whey protein is also the richest known source of naturally occurring branched chain amino acids.

It promotes weight loss by enabling a dieter to reach a feeling of fullness faster than consuming any other form of protein. Whey protein is a very high-quality complete protein with rich amounts of all the essential amino acids. Whey protein isolate is the purest form of whey protein, which is why it is absorbed so quickly and efficiently into the body.

Whey protein is a nutritionally complete protein. It contains bioactive ingredients, like immunoglobulins and lactoferrin, which help support the immune system. Athletes prefer whey protein to soy protein due to its rich abundance of branched-chain amino acids and its quick absorption rate. These are important to help repair and rebuild muscles after a workout or competitive event.

Whey protein has a fresh, neutral taste and will not change the taste of foods you add it to. Whey protein does not contain isoflavones or any other components with potential hormonal effects. Compared to other proteins, on a gram-to-gram basis, whey protein isolate delivers more essential amino acids to the body but without the fat or cholesterol. Nutrition experts recommend a diet with a variety of protein foods but for optimal results make sure that one of them is whey protein.