A source of high-quality protein, eggs might give your meal more staying power too. A recent study found that when people ate a scrambled-egg-and-toast breakfast, they felt more satisfied—and ate less at lunch—than when they ate a bagel (that supplied the same number of calories) another day. Even if you’re watching your cholesterol, a daily egg can likely fit into your eating plans. Egg yolks contain lutein and zeaxanthin—two antioxidants that help keep eyes healthy. In fact, mounting research links lutein and zeaxanthin with reduced risk for age-related macular degeneration, the leading cause of blindness in people over 50. And lutein also may help to shield your skin from UV damage.