Once vilified for their high cholesterol content, eggs have cracked their bad rap and are now considered a nutritional powerhouse. Why? Studies found they keep you satisfied longer and help you consume fewer calories throughout the day, thanks to their protein (about six grams per egg) and healthy fat (in the yolk). Eggs are also easy to prepare and relatively cheap. Look for organic eggs, which are often higher in omega-3 fatty acids, says Benlifer.