Yes, hard-boiled eggs are one of the healthiest foods you can eat.  Hard-boiled eggs are low in calories and rich in many important vitamins, minerals, and nutrients. In addition, eggs are an excellent source of protein.  While the yolk provides nutrients, fat, and protein, the white is almost exclusively protein.  Plus, they contain all nine essential amino acids. As a bonus, hard-boiled eggs are not prepared with the addition of any butter or oil, which makes them a healthier choice than fried eggs.