What foods can I eat to increase my Nitric Oxide production?

Many foods, such as spinach, nuts, artichokes, beetroot, and certain green teas, are rich in dietary nitrates, which convert in the body to Nitric Oxide. However, one of the known facts about Nitric Oxide is that it gets harder to consume enough of these nitrate-rich foods in order to compensate for the declining Nitric Oxide production levels of your body as you age.