Hi, I'm Dr. Roy Benaroch with Pediatric Physicians PC. And we're here to talk about protein. What are the good sources and bad sources.Protein is an important part of a healthy diet. It provides the building blocks needed to grow and repair bodies, and is also a good source of food energy. Almost all children in the developed world get plenty of net protein in their diets, but some protein sources provider more healthy nutrition than others. The best protein comes from sources that don't include less-nutritious baggage like saturated fats and processed sugars.Some examples of good protein sources include: For more information visit about.com.