Protein plays a major role in your body by helping build and maintain your muscles, organs and other tissue.

You may know how important protein is to a healthy and balanced diet, but there are so many different forms, it can be a little confusing which type you should be consuming.

It turns out that different sources of protein can accomplish different things based on your personal goals. For instance, whey protein from milk boosts your intrinsic antioxidants, while casein protein, also from milk, is better for strengthening the immune system.

If you're eating the right amount of protein, why would someone decide to use protein powder or supplements?

People who incorporate extra protein in their diet might do so because they suffer from muscle atrophy, a condition where your muscles waste away. By consuming added protein, it can help boost muscle growth. Other reasons could be boosting immunity, for example if you suffer from chronic infections, or to boost your metabolism.

Which protein supplements should you be taking?

You want to make sure the quality of your protein supplement meets the standard of the Protein Digestibility Corrected Amino Acid Score (PDCAAS). You need to know how well the protein supplement is broken down and absorbed. When you're picking a protein supplement, you want a digestibility score of one. Four common protein supplements that have a digestibility of one are casein, egg white, soy, and whey.

What else do you need to know about protein supplements?

Dr. Mike discusses the main sources of protein supplements and primary benefits gained from each one.