Nitric Oxide Foods That Keep Your Arteries Young

Nitric oxide is a tiny gas molecule the body makes that helps relax and widen blood vessels, and certain foods, beet juice, arugula, garlic, pomegranate, and citrus among them, may help support how much of it gets produced. This effect is also increasingly pronounced as one ages. Studies have shown that your body's production of nitric oxide can decline significantly over the decades. People who produce lower amounts of nitric oxide also tend to have higher blood pressure and exhibit more inflammation in the walls of their blood vessels. The food on your plate affects how much nitric oxide your body creates.

What Nitric Oxide Really Does in Your Body

Nitric oxide is a signaling molecule secreted by the endothelium (the innermost layer of the blood vessel wall) that tells your blood vessels to relax. When blood vessels relax, they widen. Your blood flows better and blood pressure goes down. Nitric oxide is one of the key compounds associated with heart health because it keeps arteries from getting too hard over time.

The catch is that nitric oxide production naturally declines with age, and research suggests levels can drop significantly across the decades. Lower levels correlate with both higher blood pressure and greater arterial inflammation, which is why inorganic nitrate has become an active area of cardiovascular research.

The Best Natural Nitric Oxide Foods

The body can make nitric oxide from the amino acid L-arginine, or from dietary nitrates from plants, which the body converts into nitric oxide with the help of bacteria in the mouth. That second pathway is where food plays its biggest role. The strongest natural nitric oxide foods to build a routine around include:

• Beet juice, one of the richest dietary nitrate sources

• Arugula and other nitrate-dense leafy greens

• Garlic, which may support the nitric oxide pathway

• Dark chocolate, for its cocoa polyphenols

• Citrus fruits like oranges and lemons

• Pomegranate seeds

• Fermented foods such as sauerkraut and kimchi

Why Beets Top the List

Beets earn their spot at the top of any list of nitric oxide foods because they're high in inorganic nitrate, which the body converts into nitric oxide. Research on dietary nitrate metabolism traces how ingested nitrate moves through the mouth, into circulation, and on to skeletal muscle, where it is associated with improved blood flow during exercise.

The most commonly studied forms of beet juice are concentrated, since dietary nitrate is abundant in that form and easily converted by the body. For anyone who isn't a fan of the earthy taste, roasted beets, grated raw beets on a salad, or beets blended into a smoothie all count just as well.

Pomegranate and the Leafy Greens

Pomegranate seeds are rich in polyphenols, which may help protect nitric oxide after it's been synthesized in the body. Leafy greens are the quiet workhorses of this whole system, arugula, spinach, and Swiss chard are all high in natural nitrate content.

A systematic review and meta-analysis of randomised controlled trials on food sources of nitrate, polyphenols, L-Arginine, and L-Citrulline found these are associated with endurance exercise performance. One easy habit to build up is one large salad a day with a few pomegranate seeds on top, which would cover both of these avenues.

Vegetarian Sources of Nitric Oxide

Here's the good news for vegetarians: most of these nitric oxide foods are vegetarian-friendly. Think beets, arugula, garlic, citrus, pomegranate, and fermented veggies.

For the L-arginine and L-citrulline pathway specifically, these plant sources are worth including:

• Watermelon, a well-known source of L-citrulline

• Walnuts and other nuts

• Seeds like pumpkin and sunflower

• Legumes such as chickpeas and lentils

• Whole grains for a steady diet

How to Boost Nitric Oxide Through Diet

How to boost nitric oxide foods?

The first step is knowing which foods help boost your nitric oxide levels, but the second step is actually incorporating them into your diet. Here’s a simple, repeatable plan to help you get started:

• Eat nitrate-rich greens or beets most days, not just occasionally

• Add polyphenol-rich foods like pomegranate, citrus, and dark chocolate

• Include garlic and fermented foods for variety

• Go easy on harsh antibacterial mouthwash, since mouth bacteria play a direct role in converting nitrate into nitric oxide

• Support the larger cardiovascular picture with the basics your body requires as a whole

Where Supplements Can Fit

Food comes first, but some people layer in targeted support for the heart and vessels as well. For Blood pressure support, options from the blood pressure collection, including Blood Pressure Support, Magnesium Glycinate 400mg, or a quality fish oil like Super Omega-3 EC, are worth considering. Garlic lovers sometimes look at Allimed 450mg as a more concentrated option.

Everyone's numbers and needs differ, so a lab review consultation with a clinical team is a good way to build a plan tailored to individual labs and goals.

Key Takeaways

• Nitric oxide is a chemical messenger that plays a key role in cardiovascular health and is known to decrease as people get older.

• Low nitric oxide levels go hand in hand with higher blood pressure and more arterial inflammation.

• Among the benefits of nitric oxide foods, the top ones include beet juice, arugula, garlic, dark chocolate, citrus, pomegranate seeds, and fermented foods.

• Bacteria in your mouth also help convert the nitrate you ingest from food to nitric oxide. That’s another reason why dental hygiene is important.

• Diet is a strong foundation, and a clinician can help personalize a broader plan.

Frequently Asked Questions

What is nitric oxide, and what counts as a nitric oxide food?

Nitric oxide is a signalling molecule your body makes that causes your blood vessels to relax and open up, which leads to better blood flow. The foods highest in dietary nitrates and other helpful nutrients are beets (beet juice), leafy greens (like arugula), garlic, dark chocolate, citrus fruits, pomegranate seeds and fermented foods (sauerkraut and kimchi). You won't find nitric oxide in these foods directly, but they do contain dietary nitrates, which are converted to nitric oxide by bacteria in your mouth. Your body also uses polyphenols to create nitric oxide. Nitric oxide production drops off as we age, so adding more nitric oxide foods to your diet can only help in the long run.

What's the best way to boost nitric oxide through diet?

Consistency matters more than any single food. Eating nitrate-rich greens or beets most days, adding polyphenol-rich foods like pomegranate and citrus, and including garlic and fermented foods regularly all support the process. It's also worth going easy on harsh antibacterial mouthwash, since the bacteria it targets are part of how the body converts dietary nitrate into nitric oxide in the first place.

Do all nitric oxide foods work the same way?

No, they generally work through one of two distinct pathways. Nitrate-rich beets and greens like arugula, spinach, and Swiss chard fuel one pathway, while watermelon, walnuts, seeds, and legumes supply L-citrulline and L-arginine to support the other. Combining foods from both pathways, used consistently, tends to offer broader support than relying on a single source.

Does timing matter, should nitric oxide foods be eaten at a specific time of day?

Not especially. The evidence points more toward consistency than timing, regularly working nitrate-rich greens and beets into a daily routine matters more than when during the day they're eaten.

What are high nitric oxide foods?

Beets, arugula, spinach, garlic, dark chocolate, citrus fruit, pomegranate seeds, fermented vegetables such as sauerkraut and kimchi are all good candidates, as they contain high levels of nitrate, the chemical signifier for nitric oxide foods. Concentrated beet juice is one of the most potent sources of dietary nitrate available. Watermelon, walnuts, seeds, and legumes also contribute to the mix with their L-citrulline and L-arginine, delivered via a different pathway, so blending a few of these sources into your diet is generally more effective than choosing only one.

The purpose of this article is educational only and is not meant to be a replacement for personalized medical advice. Consult your physician before making any major dietary changes or taking any supplements, especially if you are on medication to manage your blood pressure.

Some to start with include beet juice, arugula, spinach, and Swiss chard, plus garlic, dark chocolate, citrus fruits, pomegranate seeds, and fermented foods like sauerkraut and kimchi. Watermelon, walnuts, seeds, and legumes add support through the L-citrulline and L-arginine pathway, so mixing a few of these into your diet may help more than relying on just one.

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