"Eggs are a fantastic source of protein (both whites and yolks), healthy fats, and vital nutrients like vitamin B6, B12, and vitamin D," says Dr. Kurt Hong, an internal medicine expert at Keck Medicine of USC. These nutrients work together to support overall health. Eggs are a complete protein, offering all nine essential amino acids in perfect balance. Plus, their nutrients are highly bioavailable, so the body absorbs them easily. This makes eggs a top choice for everyone, from kids to seniors and athletes to busy folks.