Garlic
 

Garlic

Let this serve as a nutritional light bulb moment: adding garlic is the easiest way to give any meal a health-boosting edge. Not only did the Journal of Nutrition find that the more you eat the lower your risk of stomach cancer, it's also an excellent source of natural antibiotics, proven to lessen the amount of colds men contract each year. Plus, the fact it improves blood circulation to specific areas makes it a natural alternative to the little blue pill in the bedroom. Best to brush your teeth first, though.