Eggs, yolk and eggs are harmless to the heart and can help you lose weight. Research reports show that when eating a low-calorie diet, women who eat fried eggs and jelly toast every morning lose twice as much weight as women who eat bagels with the same calorie. Protein makes people feel full, so it is not easy to feel hungry and eat less in the following time. Scrambled eggs and omelets are the best choice, but if you don't have time to make them before going to work, you can bake some vegetable omelets on Sunday, cut them into pieces and refrigerate them, and eat them next week.