No yolk: Make sure you're not just eating the egg white

Convinced that egg-white omelettes are the pinnacle of healthy breakfasts? Don't forget about the yolks -- they're one of the most important parts of the egg. Sure, they contain a bit of cholesterol, but consider this: Egg yolks contain zeaxanthin and lutein, two nutrients that are critical for eye health. Also? They're a good source of phosphatidylcholine, which is important for boosting your brain power.

So next time you're whipping up breakfast, instead of using three egg whites, throw in one whole egg -- that way, you're getting all the benefits and not too much of the fat.