"Eggs are an excellent source of protein (both whites and yolks), unsaturated fats, and essential nutrients like vitamin B6, B12, and vitamin D," says Dr. Kurt Hong, MD, of Keck Medicine of USC. These nutrients promote overall health and well-being. Eggs are considered complete proteins, containing all nine essential amino acids in optimal ratios. Additionally, the nutrients in eggs are highly bioavailable, meaning the body absorbs and uses them efficiently. This makes eggs ideal for all ages, from children to seniors, athletes to busy professionals.