Types of Whey

Whey protein is popularly used by athletes and body-builders. This milk-derived protein can aid in the body's development of muscle mass, making it an ideal supplement to use after a workout. While there are many different kinds of whey powder available, there are many different variations on what those powders contain.

Whey Protein Concentrate

• Depending on the brand you get, whey protein concentrate contains between 25 percent and 89 percent protein. The most inexpensive whey protein concentrates can be slightly higher in fat than other forms of whey, but this is not necessarily a bad thing. Some of the fats found in whey protein are actually beneficial for your body.

Whey Protein Isolate

• Virtually fat free and containing a minimum of 90 percent protein, whey isolate is a more purified form of whey concentrate. Though isolate is a more expensive choice, the lack of extra components makes it much easier to digest, thus allowing the body to absorb it more readily.

Ion Exchange

• This form of whey protein is one surrounded by considerable debate. To make ion exchange whey protein, whey concentrate is run through an ion exchange column, which strips the concentrate down to pure protein. The problem is that whey is a complex protein that relies on "subfractions" --- small chains of peptides. The ion exchange process breaks down these subfractions. Some argue that the increase in pure protein is worth it, while others believe the effectiveness of the protein is lost along with the subfractions.

Hydrolized Whey Protein

• Hydrolized whey protein is so easily absorbed by the human body that it is a common ingredient in baby formula. This unique feature makes it ideal for those who have digestive problems or lactose intolerance. The drawback to hydrolized whey protein is that the taste is not very pleasant. As a result, manufacturers rarely create products that are more than 20 percent hydrolized.