If you’ve ever boiled eggs for breakfast, lunch, or even to prepare deviled eggs for a party, you’ve probably noticed a green or grayish circle around the yolk. It can look unappetizing, and you may have even wondered if the egg has spoiled or become unsafe to eat. The good news is, that little ring isn’t harmful at all—it’s just science at work.
Let’s take a closer look at why this happens, what it means for your health, and how you can cook your eggs to avoid it altogether.Before we dive into the mystery of the green circle, it’s worth remembering why eggs are considered one of the most complete and affordable foods available. Whether you like them scrambled, poached, fried, or boiled, eggs pack a powerhouse of nutrients in a neat little shell.