Confession: When it comes to breakfast, I’m a creature of habit. Most mornings, I have two eggs. Hard boiled, scrambled, over-easy—you name it (I’m not picky). Sometimes with spinach or kale. Sometimes with a side of fruit.

So when I was asked to eat egg whites for breakfast every day for two weeks, I thought, “No problem. I’ve got this.” It’s basically what I eat anyways.

Even though the yolk is delicious (and full of nutrients, FYI), the egg white itself is lower in calories, fat, and cholesterol, which is pretty tempting. Plus, the whites still have a ton of protein. “With three and a half grams of high quality protein apiece, egg whites are a top food for appetite control and muscle building,” says Karen Ansel, R.D.N., author of Healing Superfoods for Anti-Aging: Stay Younger, Live Longer.

But would I miss my beloved runny yolk? Would I feel any different? Challenge accepted:

