Foods That Help the Body Make Nitric Oxide

5. Citrus Fruits

Citrus fruits don’t provide nitrates, but they still play a useful role in nitric oxide metabolism. They’re rich in vitamin C, which helps protect nitric oxide from breaking down too quickly in the body.

That makes vitamin C a kind of stabilizer — it doesn’t boost production, but it helps the nitric oxide you already make stay active longer. This benefit ties into circulation and blood vessel flexibility, especially when paired with nitrate-rich foods like spinach or beets.

Oranges, grapefruit, lemons, and limes are all good sources, particularly when eaten raw or juiced without added sugar.