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Guess what, chocolate is healthy. Well, that is only partially true, but at least we got your attention. The raw cacao bean increases nitric oxide and is loaded with antioxidants. Cacao can lower blood pressure and markers of inflammation. Unfortunately, chocolate is loaded with sugar. Save it for special occasions and skip the milk chocolate.
Dark green leafy vegetables and beets tend to be among the foods highest in natural nitrates. If trying to increase your nitrate intake, eating arugula, celery, lettuce, beets, spinach, watercress and chervil are good options as they contain more than 250 milligrams of nitrates per 100 grams, or 3.5 ounces.eets on table. Photo Credit pilipphoto/iStock/Getty Images. Nitric oxide plays a number of beneficial roles in the body, including increasing blood flow to your brain, lowering blood pressure levels and limiting the formation of blood clots. Foods don't actually contain nitric oxide.