Best Nitric Oxide Boosters – Review Top NO2 Boosters of 2022

Nitric oxide is crucial for blood flow, endurance, and overall performance.

By taking the right natural ingredients, you can boost nitric oxide (NO2) levels.

Today, the best nitric oxide supplements contain science-backed ingredients to reliably raise nitric oxide levels within your body.

With so many nitric oxide supplements available, however, it’s difficult to know which one is best for you.

We want to help. We contacted manufacturers, checked lab reports, and conducted hundreds of hours of research to find the best nitric oxide supplements available today. Here’s what we found.

Our Rankings

After much deliberation, here’s how our editorial team ranked the best nitric oxide booster supplements available today.

  • CrazyBulk NO2-Max
  • Juvenon BloodFlow-7 Nitric Oxide Booster
  • Advanced BioNutritionals CircO2
  • New Alpha Nutrition Alpha Strength
  • VigRX Nitric Oxide
  • Onnit Total Nitric Oxide
  • Transparent Labs Strength Series Nitric Oxide
  • Huge Supplements Magnify
  • Old School Labs Vintage Burst
  • Cellucor NO3
  • Snap Supplements Nitric Oxide Booster
  • HumanN Neo40 NO2 Booster
  • Sovereignty Purpose
  • 1MD CardioFitMD
  • NitriLean
  • Brutal Force IBUTALEAN
  • Brutal Force CARDALEAN
  • Drachen
  • Rasputin Herbs Siberian Green
  • The 20 Flow
  • Anabolic Running
  • Hyperbolic Stretching

Crazy Bulk NO2-Max


Crazy Bulk is best-known for offering legal steroid supplements and other high-powered formulas. NO2-Max doesn’t replicate the effects of any steroid, but it does give you a major energy boost by flooding your body with nitric oxide

By taking two tablets of NO2-Max daily, you purportedly enjoy an extreme energy boost while enhancing performance and increasing strength. It’s designed as a preworkout for anyone who wants to widen blood vessels before a workout.

We like NO2-Max because it uses just two active ingredients: calcium and L-arginine. While other supplements flood your body with dozens of unnecessary ingredients, NO2-Max provides a strong dose of one of the most science-backed nitric oxide boosters: L-arginine.

Crazy Bulk NO2-Max Price: $60

Juvenon BloodFlow-7 Nitric Oxide Booster


Juvenon’s Nitric Oxide BloodFlow-7 is a popular and well-rated nitric oxide booster formula priced at $40 per bottle. Using a proprietary formula called S7 along with beetroot extract and a nitric oxide precursor blend, BloodFlow-7 tackles blood flow from three angles using some of the most proven ingredients in the space.

Key ingredients in the formula include L-citrulline and L-arginine (as nitric oxide precursors), beetroot extract (for its betaine nitrate content), and a blend of green coffee bean extract, green tea leaf extract, turmeric, tart cherry, blueberry, broccoli, and kale.

Together, the unique blend of ingredients in BloodFlow-7 can purportedly restore youthful energy and stamina while increasing alertness, supporting blood pressure, and giving you better skin, hair, and nails, among other effects.

Juvenon BloodFlow-7 Nitric Oxide Booster Price: $40

Advanced BioNutritionals CircO2


CircO2 from Advanced BioNutritionals uses nitric oxide boosting ingredients to support cholesterol, blood pressure, energy, and even sexual health, among other effects.

Like other high-rated nitric oxide boosters on our list, Advanced Bionutritionals uses beetroot extract for its proven ability to boost nitric oxide. Other key ingredients in CircO2 include L-citrulline, hawthorne berry, vitamin B12, vitamin C, and magnesium.

Advanced BioNutritionals uses no artificial colors, binders, fillers, or preservatives in CircO2 or other supplements. The company makes formulas in an FDA-registered, GMP-certified facility.

Advanced BioNutritionals CircO2 Price: $50

New Alpha Nutrition Alpha Strength


New Alpha Nutrition makes a popular nitric oxide booster supplement called Alpha Strength. Marketed primarily to men who want to boost sexual performance, Alpha Strength uses various ingredients to boost nitric oxide production and testosterone at the same time.

By taking Alpha Strength daily, men can purportedly enjoy higher sex drive, harder erections, and greater confidence, among other benefits.

To achieve these effects, Alpha Strength contains a blend of proven and popular nitric oxide boosters, including L-citrulline, magnesium, and vitamin B6. It also contains popular testosterone boosters like zinc, fenugreek, and tongkat ali. By tackling blood flow and sex drive from multiple angles, Alpha Strength could support various benefits.

New Alpha Nutrition Alpha Strength Price: $69

VigRX Nitric Oxide


VigRX’s Nitric Oxide Support boosts nitric oxide levels naturally by giving you L-citrulline and L-arginine to support cardiovascular health.

Each serving of Nitric Oxide Support contains a maximum strength L-citrulline and L-arginine blend to support libido, blood flow, and sex drive. There’s 3g of L-citrulline and L-arginine in total in each three tablet serving of Nitric Oxide Support, giving you better endurance and blood flow whether in the bedroom or at the gym.

According to VigRX, their formula will promote endothelial health, boost sex drive, improve erection quality, and help with insane pumps at the gym, among other benefits. Plus, it’s priced at just $35.

VigRX Nitric Oxide Price: $35

Onnit Total Nitric Oxide


Onnit is a high-quality supplement company known for its nootropics, preworkouts, and bodybuilding supplements. Today, Onnit’s Total Nitric Oxide is one of the best and most proven nitric oxide boosters in the world.

Featuring a combination of L-citrulline, L-arginine, and beet, Total Nitric Oxide aids recovery, helps build muscle, helps fight fatigue, promotes work capacity, and supports healthy blood pressure using three of the most proven ingredients in the nitric oxide space.

Plus, at $40 for 20 servings, Onnit’s Total Nitric Oxide doesn’t cost a fortune. It’s a higher price for a higher quality formula, but you get proven nitric oxide boosting support with each serving.

Onnit Total Nitric Oxide Price: $40

Transparent Labs Strength Series Nitric Oxide


Transparent Labs Strength Series Nitric Oxide is a nitric oxide formula that offers similar benefits to other nitric oxide boosters listed here, but with unique ingredients we don’t see in other blends.

Strength Series Nitric Oxide contains arginine nitrate and betaine nitrate (from beets), similar to other formulas listed here. However, it also contains L-glutathione, pine bark extract, vitamin C, and astragalus, among other ingredients.

Plus, the dosages are among the strongest on our list. You take four capsules daily to give yourself a strong dose of all active ingredients within Strength Series Nitric Oxide.

Transparent Labs Strength Series Nitric Oxide Price: $40

Huge Supplements Magnify


Magnify from Huge Supplements is an advanced nitric oxide formula that claims to increase muscle pumps, deliver explosive workouts, and use science-backed ingredients to increase vasodilation.

Whether trying to improve performance at the gym or in the bedroom, Magnify aims to magnify performance anywhere you go. According to Huge Supplements, Magnify contains some of the highest doses on the market.

One reason Magnify has high doses is its high number of capsules. You take six capsules daily to support blood flow in various ways. Each six capsule serving contains 1,500mg of L-arginine, 1,000mg of beet root extract, 1,000mg of L-citrulline, and other ingredients to maximize blood flow.

Huge Supplements Magnify Price: $44.95

Old School Labs Vintage Burst


Vintage Burst from Old School Labs is a natural nitric oxide booster specially formulated to help keep nitric oxide levels elevated for hours. The formula is designed to boost performance for around three hours.

Vintage Burst contains more ingredients than virtually any other nitric oxide booster on our list. You get strong doses (1,500mg) of L-arginine along with maca root, organic coffee fruit extract, and a blend of a dozen other fruit and vegetable extracts.

Vintage Burst is also one of the few nitric oxide boosters on our list containing caffeine. Vintage Burst contains 100mg of caffeine per serving, or around the same amount as a cup of coffee. Some people like combining caffeine with a nitric oxide booster supplement, while others find it counter-intuitive (because caffeine restricts blood vessels while nitric oxide widens them).

Old School Labs Vintage Burst Price: $40

Cellucor NO3


NO3 is a stimulant-free preworkout supplement that boosts pump while being made by one of the best-known brands in the bodybuilding supplement industry: Cellucor.

Known for its high-powered preworkouts, Cellucor also makes a popular and effective nitric oxide booster. Plus, priced at just $30, NO3 is also one of the best-value options on our list.

NO3 contains an effective blend of L-arginine (1,250mg) with an additional dose of inositol-stabilized arginine silicate, citrulline malate, and grape seed extract. The unique combination of ingredients can supercharge a training session and boost endurance, increasing blood flow to muscles and amplifying pump.

Cellucor NO3 Price: $30

Snap Supplements Nitric Oxide Booster


Snap Supplements’ Nitric Oxide Booster is a nitric oxide supplement that claims to assist lung function and respiratory health, promote healthy immune system function, and support overall circulatory health, among other benefits.

To do that, Nitric Oxide Booster contains a blend of 1.5g of amino acids, including L-citrulline and three forms of L-arginine. You also get additional amino acids like L-taurine, L-norvaline, and vanadyl sulfate. Plus, there are unique herbal compounds like tribulus terrestris and Asian ginseng.

Overall, Nitric Oxide Booster contains a blend of popular and proven compounds linked to higher nitric oxide levels. Although it’s not as powerful as other compounds on our list, you can easily double the dose while maintaining cheaper pricing than other supplements here, making Nitric Oxide Booster a good-value option based on weight and price.

Snap Supplements Nitric Oxide Booster Price: $24

HumanN Neo40 NO2 Booster


HumanN Neo40 NO2 Booster, Neo40 is a nitric oxide supplement from HumanN, a company that specializes in nitric oxide formulas.

Described as a clinical strength daily heart and circulation formula, Neo40 uses many of the same ingredients as other supplements listed here to dilate blood vessels and boost endurance.

Each tablet of Neo40 contains 425mg of a proprietary nitric oxide blend with beetroot powder, hawthorn berry extract, L-citrulline, and sodium nitrite. Together, these ingredients should raise nitric oxide levels in your body. The main drawback of Neo40 is the high price tag: at $90, its high-quality formula may be out of the budget for some users.

HumanN Neo40 NO2 Booster Price: $90

Sovereignty Purpose


Purpose is a nitric oxide booster supplement from Sovereignty backed by a 180 day moneyback guarantee. Using 7 patented ingredients, the formula aims to deliver elite energy and focus without the jitters or caffeine crash.

Purpose uses a blend of Ayurvedic adaptogenic ingredients. Many of these ingredients have been used for centuries to support stress response and overall health and wellness in traditional Ayurvedic medicine.

With a combination of blood flow optimizers and stress managing ingredients, Purpose contains grapeseed extract, beet juice, ashwagandha, and cordyceps to achieve its targeted benefits.

Sovereignty Purpose Price: $34

1MD CardioFitMD


CardioFitMD is a cardiologist formulated daily superfood formula designed for cardiovascular and whole body health. Featuring a range of proven ingredients – from probiotics to nitric oxide boosters – CardioFitMD can support more than just blood flow.

CardioFitMD is also one of the most powerful formulas on our list. You get 2,000mg of beetroot powder, 2,000mg of beetroot juice powder, and 300mg of rhodiola root powder along with dozens of vitamins and minerals.

If you want a powerful multivitamin combined with a hefty dose of beetroot extract, then CardioFitMD is one of the best options available.

1MD CardioFitMD Price: $45



NitriLean is one of the few nitric oxide boosters on our list specifically marketed for its weight loss benefits.

According to the official website, NitriLean is based on a “Russian secret” that “melts 87lbs of fat,” allowing you to “burn 1.8lbs every 36 hours.” The formula even claims to protect against sudden heart attacks, reduce cravings, and increase longevity, among other effects.

Although we’re skeptical of some of NitriLean’s claims, the formula contains a proven blend of nitric oxide boosting ingredients like beetroot and L-citrulline. Unfortunately, doses are much smaller than most competing formulas on our list, which is why NitriLean is further down (there’s just 100mg of beetroot and 220mg of L-citrulline, both of which are much lower doses than used in studies).

NitriLean Price: $49

Brutal Force IBUTALEAN


IBUTALEAN from Brutal Force aims to take muscle growth to a whole new level while replicating the effects of IBUTAMOREN MK-677.

According to Brutal Force, IBUTALEAN can enhance lean growth, provide anti-inflammatory effects, enhance healing times, and accelerate recovery, among other benefits – similar to how growth hormone supplements work.

While other nitric oxide boosters focus on preworkout endurance and energy, IBUTALEAN focuses on healing your body after a workout using those same ingredients.

Brutal Force IBUTALEAN Price: $60

Brutal Force CARDALEAN


CARDALEAN from Brutal Force is a capsulated formula designed as an alternative to Cardarine GW501516. It’s an extreme fat burner and endurance enhancer designed for people who want to burn fat as fast as possible.

Most nitric oxide boosters widen blood vessels and enhance endurance, but CARDALEAN specifically claims to deliver extreme fat burning, better lean muscle protection, enhanced endurance, and increased vascularity, among other effects.

If you want to lose weight and widen blood vessels at the same time while taking a reliable nitric oxide booster, then Brutal Force’s CARDALEAN is a high-powered option available today.

Brutal Force CARDALEAN Price: $60



Described as the “world’s first male growth activator,” Drachen is a liquid formula containing concentrated natural extracts linked to sex life, stamina, vitality, energy, confidence, and more.

Key ingredients in Drachen include GABA, moomiyo, L-dopa, and L-glutamine, all of which are rare in the nitric oxide supplement space. Drachen also contains L-arginine and L-tyrosine, which are proven to support blood flow in various ways.

If you dislike the idea of taking a capsule or tablet and want a high-powered liquid formula instead, then Drachen could be the right choice for you.

Drachen Price: $50

Rasputin Herbs Siberian Green


Siberian Green’s Rasputin Herbs is a nutritional supplement inspired by a traditional Siberian remedy.

Featuring a blend of horny goat weed, maca root, and tongkat ali, Rasputin Herbs is designed to boost sex drive and libido in men using a blend of herbal and plant extracts.

Priced under $16, Siberian Green’s Rasputin Herbs is one of the best-value options on our list. Plus, the formula discloses all dosages and ingredients upfront, including a surprisingly strong dose (1,000mg) of horny goat weed.

Rasputin Herbs Siberian Green Price: $16

The 20 Flow


The 20 Flow is a circulation and blood flow booster designed to support cardiovascular health in various ways. According to the official website, the formula makes blood flow to wherever you want it to go, including your brain, your heart, and “all your parts.”

The manufacturer claims to have spent “years” creating the formula as the ultimate male sexual health supplement. Key ingredients include L-citrulline, watermelon rind, fermented organic spinach, and other unique ingredients we don’t see in other supplements.

By taking two capsules of The 20 Flow today, you can purportedly boost nitric oxide and support cardiovascular health. We also like how the supplement is backed by a 364-day moneyback guarantee and endorsed by certain doctors.

The 20 Flow Price: $28

Anabolic Running


Raising nitric oxide is about more than just taking supplements: you also need to do the right exercises and movements to optimize cardiovascular health.

Anabolic Running is a cardiovascular health guide marketed specifically to men who want to support heart health by running in a strategic way. Running the right way can optimize cardiovascular health without forcing you to spend hours on the treadmill.

Although nitric oxide supplements can boost blood flow, the best way to boost blood flow long-term is to exercise more often. In Anabolic Running, you can discover how to run for maximum strength gains and cardiovascular optimization.

Anabolic Running Price: $15

Hyperbolic Stretching


Hyperbolic Stretching is a nitric oxide booster guide featuring tips, tricks, and strategies anyone can use to boost nitric oxide levels.

You’ll learn core body strength exercises, lower back relief techniques, and stretches you can perform at home to reliably boost your cardiovascular system while gaining functional strength in all areas of your body.

Priced at $27, Hyperbolic Stretching can be performed at home with no equipment required. By the end of the program, you should be able to do the splits – even if you can’t come anywhere close to touching your toes today.

Hyperbolic Stretching Price: $27

How We Ranked

All nitric oxide booster supplements claim to boost blood flow by raising nitric oxide production. However, not all of these supplements work as advertised. To separate the best and worst nitric oxide boosters, we used the following metrics:

Science-Backed Ingredients: Some ingredients are genuinely proven to raise nitric oxide levels in your bloodstream. Other ingredients are shown to boost blood flow in other ways. Beetroot extract, for example, is one of the most popular and proven ways to boost nitric oxide. We preferred nitric oxide booster supplements that used high-quality, proven, science-backed ingredients to achieve their targeted effects.

Clinically Effective Dosages: The right ingredients don’t matter if the supplement uses the wrong dosages. Some supplements use doses that are too low to significantly affect the human body. The label may look impressive – but the manufacturer is using doses that are much too small. Some manufacturers even use proprietary formulas to hide low dosages while making the supplement look more powerful.

Transparency and Honesty: Some nitric oxide booster supplement companies have a shady reputation for over-exaggerating benefits. Some supplements claim to help you lose 30lbs in a week, for example, or cure heart disease overnight. None of these claims are realistic (or even legal to advertise). We preferred nitric oxide supplement companies that were transparent and honest.

Price and Value: Some nitric oxide booster supplements offer incredible value, charging discount rates for high-quality formulas. Others charge a premium price despite offering similar ingredients and dosages to budget formulas. We considered price and value in our rankings.

Customer Reviews: We personally tested each nitric oxide booster wherever possible. However, we also considered customer reviews in our ranking. People have different physiologies, and some supplements don’t work for everyone. When a supplement has thousands of positive reviews from customers claiming it works, however, it’s a good sign the formula reliably raises nitric oxide. That’s why we considered customer reviews in our rankings.

Ease of Use, Flavor, and Convenience: Some nitric oxide booster supplements taste downright unpleasant. Others taste pretty good. Some require you to swallow 6 capsules each morning, while others require just a single scoop of powder. We considered ease of use, flavor, and overall convenience in our rankings. Good nitric oxide supplements are easy to take.

Formulated by Doctors, Cardiologists, or Other Medical Professionals: Some nitric oxide supplements were created by medical doctors (MDs) and PhDs with decades of experience in their field. Others were created by marketing teams who Googled the best nitric oxide boosting ingredients. Which one would you rather take? We liked nitric oxide booster supplements that were formulated by certified experts.

Moneyback or Satisfaction Guarantee: You should be able to get a refund on your nitric oxide supplement if you’re unsatisfied with its effects for any reason. We preferred nitric oxide supplement companies that backed up their claims with a moneyback guarantee.

What is Nitric Oxide?

Nitric oxide is a compound in the body that causes blood vessels to widen.

Nitric oxide also stimulates the release of hormones like insulin and growth hormone. That’s why many nitric oxide supplements are marketed as a way to support cardiovascular health, hormones, and recovery.

Some medications use nitric oxide-like effects to widen blood flow. Viagra, for example, enhances blood flow using nitric oxide pathways, widening blood vessels and improving blood flow to the penis.

How Do Nitric Oxide Supplements Work?

Nitric oxide supplements contain ingredients that raise nitric oxide levels within your body. Some raise nitric oxide levels directly – say by giving you nitrite and other precursors. Others raise it indirectly.

The three most popular ingredients in nitric oxide supplements include beetroot, L-arginine, and L-citrulline. These three ingredients have been shown to raise nitric oxide levels when taken in the right dosages.

Top 6 Benefits of Nitric Oxide Supplements

People take nitric oxide supplements for many different reasons – from sexual performance to athletic performance and more.

Some of the best benefits of nitric oxide supplements include:

Support Heart Health: Studies show nitric oxide supplements can support arterial stiffness, blood pressure, blood flow, and other effects, all of which make it easier for your heart to function. When it’s easier for your heart to function, it’s good for heart health and overall cardiovascular function.

Better Athletic Performance: Nitric oxide raises blood flow throughout your body. That means it’s easier for oxygen, nutrients, and other compounds to circulate through your body. Whether you’re working out or in bed, you can expect better performance.

Faster Recovery: After a workout, your body needs oxygen and other nutrients to repair its muscles. Nitric oxide supplements can boost the delivery of oxygen to muscles, improving athletic performance and reducing soreness after a workout.

Better Sexual Performance: Many nitric oxide supplements are marketed to men who want to boost sexual performance. Viagra uses nitric oxide pathways to boost blood flow, making it easier to get and maintain an erection. Some studies show nitric oxide supplements could reduce erectile dysfunction and boost bedroom performance in other ways.

Support Blood Pressure: Some studies suggest nitric oxide supplements can lower blood pressure. When you have high blood pressure, you have an impaired ability to use nitric oxide in your body. High blood pressure increases the force of your blood against the arteries, which could lead to heart problems and kidney disease. Studies show nitric oxide may support blood pressure and lower the risk of heart disease.

Manage Diabetes: Surprisingly, there’s some evidence connecting nitric oxide booster supplements with diabetes. In this study, for example, researchers found that when people with type 2 diabetes took L-arginine, their nitric oxide production increased. Those higher nitric oxide levels also led to increased insulin sensitivity and better blood sugar control. Another study even found L-arginine prevented or delayed the progression of type 2 diabetes, suggesting nitric oxide supplements with L-arginine could support various symptoms in diabetics and pre-diabetics.

Best Foods for Nitric Oxide

You don’t need to take a nitric oxide booster supplement to raise nitric oxide levels. Instead, you could boost nitric oxide by adjusting your diet. Beets and leafy greens are rich with nitrites and nitrates that your body converts into nitric oxide.


Beetroot juice is full of nitric oxide, and many athletes drink beetroot juice daily for increased performance and endurance. Beets are the best food in the world for nitrates. Your body converts nitrates into nitric oxide. Numerous studies have linked beets to better heart health, lower blood pressure, and increased athletic performance and recovery, among other benefits.

Leafy Greens

Leafy greens and other vegetables are rich with nitrates. When your body gets nitrates from leafy greens, it converts those nitrates into nitric oxide. Some of the best leafy greens for nitrite and nitrate content include kale, spinach, lettuce, arugula, and broccoli. Other vegetables rich with nitrates and nitrites include cabbage, cucumber, celery, fennel, leeks, and parsley.

Other Foods

  • Beets and leafy greens are the best dietary sources of nitric oxide. However, other foods are also linked to nitric oxide production, including:
  • Garlic
  • Dark chocolate
  • Meats
  • Nuts and seeds
  • Pomegranate
  • Watermelon

Best Natural Ways to Boost Nitric Oxide

Making simple changes today can significantly affect nitric oxide levels.

Some of the best natural ways to boost nitric oxide include:

Eat More Vegetables and Beets: As we just mentioned, vegetables and beets are rich with precursors to nitric oxide. By eating these ingredients, you increase the amount of nitric oxide in your body. Vegetables are also rich with antioxidants that lower free radicals and support inflammation.

Take a Probiotic: Taking a probiotic supplement can replenish gut flora, making it easier for your gut to produce nitric acid. Your gut produces nitric acid from the foods you eat. When you take a probiotic, you balance gut flora in your digestive tract, boosting the production of nitric acid.

Exercise: Exercising can release nitric oxide. Some of the best exercises for releasing nitric oxide include compound workouts that involve large muscles and multiple muscle groups (like deadlifts, squats, and bench presses). Some studies show you only a few minutes of high intensity exercise daily to boost cardiovascular, nervous system, and immune system health.

Scientific Evidence for Nitric Oxide Booster Supplements

Nitric oxide booster supplements work in different ways to boost nitric oxide levels in the body. The best supplements use science-backed ingredients proven to raise nitric oxide levels, widening and relaxing blood vessels.

Beetroot is one of the most popular and proven nitric oxide booster supplement ingredients. In this study, researchers found a correlation between beetroot and blood pressure. Researchers found that beetroot extract relaxed blood vessels, lowering blood pressure in patients. Other studies have shown beetroot can also boost performance and endurance by interacting with nitric oxide in this manner.

Today, we know beetroot works because it’s rich with nitrite, a precursor to nitric oxide. Your body transforms the nitrite in beetroot into nitric oxide, and that nitric oxide travels throughout your blood to widen blood vessels and support other effects.

Some nitric oxide booster supplements boost blood flow without directly raising nitric oxide levels. Yohimbine, for example, is a popular preworkout supplement ingredient that appears to help with blood flow. In this 2006 study, researchers found yohimbine increased fat loss and boosted energy and blood flow, for example, making it an effective preworkout and nitric oxide booster-like formula.

L-citrulline is an amino acid found in many nitric oxide booster supplements. In this study, researchers found L-citrulline could help treat erectile dysfunction by increasing the production of nitric oxide. Your body needs nitric oxide for the muscles in the penis to relax.

Other studies have linked L-citrulline to decreased muscle soreness. In this study, for example, researchers took 8g of citrulline malate and experienced significantly less muscle soreness than a group taking a placebo.

As one of the best-studied nitric oxide booster supplement ingredients, L-citrulline has also been shown to increase nutrient delivery and clear waste products after a workout, all of which can enhance recovery.

L-arginine is a popular nitric oxide booster supplement ingredient. It’s also one of the most-studied nitric oxide boosting ingredients. Although many people take L-arginine as a preworkout, it’s not been definitively proven to boost exercise performance in studies like this one. That’s because your body breaks down L-citrulline before it reaches the bloodstream, which could make it less effective than L-citrulline for boosting blood flow.

Garlic is a popular blood flow booster, and some nitric oxide booster supplements use garlic for that reason. Some studies have shown a direct connection between garlic and nitric oxide. In this 1995 study, for example, researcher showed garlic was involved in potent nitric oxide synthesis, widening blood vessels and relaxing arteries. In a similar study, researchers found aged garlic extract enhanced the production of nitric oxide by 30 to 40% (!).

One of the tastiest ways to boost nitric oxide is by eating dark chocolate. Multiple studies have connected dark chocolate consumption to nitric oxide. In this 2011 study, for example, researchers found dark chocolate increased nitric oxide serum levels and lowered blood pressure in people with prehypertension. Researchers gave 25g of dark chocolate or a placebo to a group, then observed significant increases in nitric oxide and significant drops in blood pressure.

Nitric oxide has antioxidant effects, which is why many nitric oxide supplements use antioxidants to complement the effects. Some nitric oxide supplements use turmeric, green tea leaf extract, and grape seed extract, for example, to optimize the antioxidant effects of nitric oxide.

Overall, there are multiple science-backed ways to boost nitric oxide and widen blood vessels. The best nitric oxide supplements use proven ingredients to reliably raise nitric oxide levels in your bloodstream to support various goals.

Side Effects of Nitric Oxide Boosters

Nitric oxide booster supplements are safe for most healthy adults to take when following the recommended dosages on their packaging.

However, when exceeding the recommended dosage, you could experience side effects. Studies show people taking more than 10g of L-arginine, for example, could have an increased risk of stomach discomfort and diarrhea.

If your nitric oxide booster supplement has beetroot extract, it could turn your urine or stool a pink or dark red color. Don’t be alarmed: this is the natural color in beetroot leaving your body, and it’s a harmless side effect.

Recommended Dose of Nitric Oxide Boosters

Because nitric oxide boosters contain different ingredients in different concentrations, there’s no single “correct” dose of nitric oxide boosters.

However, most L-arginine and L-citrulline studies use doses of 1g to 10g.

Some of the top-rated beetroot extract supplements, meanwhile, use doses of 500mg to 2,000mg per serving.

FAQs About Nitric Oxide Booster Supplements

Our expert team gets plenty of questions about nitric oxide booster supplements and how they work. Here are the answers to some of the most frequently asked questions.

Q: What is nitric oxide?

A: Nitric oxide is a natural compound your body produces to help with blood flow.

Q: What does nitric oxide do?

A: Nitric oxide relaxes blood vessels, making it easier for blood to flow throughout your body.

Q: How do nitric oxide booster supplements work?

A: Some nitric oxide booster supplements target nitric oxide using natural ingredients that directly raise nitric oxide – like beetroot extract, which is rich with a precursor to nitric oxide called nitrite. Other nitric oxide booster supplements work in different ways, indirectly supporting your body’s natural nitric oxide production.

Q: How much do nitric oxide booster supplements cost?

A: Nitric oxide booster supplements cost $25 to $70 for a one month supply, on average. However, you can find some good value nitric oxide supplements for as little as $10 and some for over $200.

Q: Are nitric oxide boosters safe?

A: Studies show that nitric oxide boosters are safe for most healthy adults to take in normal doses. Follow the recommended dosage on your nitric oxide supplement and pick a reputable product to limit the risk of side effects.

Q: What’s the best way to raise nitric oxide levels?

A: The best way to raise nitric oxide levels is to eat more nitrite-rich foods (like beets) or take a nitric oxide booster supplement.

Q: Are nitric oxide boosters bad for your liver?

A: Taking high amounts of synthetic nitrates and nitrites from processed meats could be bad for your liver and overall health. However, there’s little evidence the nitrates in vegetables are bad for your liver or overall health.

Q: Can I take nitric oxide supplements daily?

A: Generally, most nitric oxide supplements are designed to be safe to take daily. However, you should monitor daily symptoms to ensure it’s interacting safely with your body.

Q: What are the best foods for nitric oxide?

A: Beets and leafy greens are the best foods for nitric oxides. By adding more beets and leafy greens to your diet, you can naturally raise nitric oxide thanks to the natural nitrate and nitrite content, which your body converts into nitric oxide.

Q: What’s the best nitric oxide booster supplement?

A: The best nitric oxide booster supplements include Crazy Bulk NO2-Max, Juvenon BloodFlow-7, and CircO2 from Advanced BioNutritionals, among others.

Q: Are beets good for nitric oxide?

A: Yes, beets and beetroot juices are the best dietary source of nitrates and nitrites that your body converts into nitric oxide.

Q: Is L-citrulline good for nitric oxide?

A: Yes, L-citrulline appears to boost nitric oxide production in the body, and L-citrulline has demonstrated proven blood flow supporting effects in multiple studies to date.

Q: Is L-arginine good for nitric oxide?

A: L-arginine appears to be good for nitric oxide and blood flow, although it’s backed by slightly less research than beets and L-citrulline.

Q: Can nitric oxide help with erectile dysfunction?

A: Yes, studies show nitric oxide boosters and nitric oxide-rich foods can help with erectile dysfunction. In fact, Viagra uses nitric oxide-like pathways to boost blood flow and boost sexual performance.

Q: Can probiotics help with nitric oxide?

A: Yes, your gut bacteria produce nitric oxide from the foods you eat. If your gut is imbalanced, your body may struggle to produce nitric oxide. Probiotic supplements can help.

Final Word

Nitric oxide booster supplements are a popular way to boost blood flow, performance, recovery, and more.

Good blood flow is crucial to cardiovascular health, sexual performance, athletic performance, and other aspects of health and wellness. People take nitric oxide booster supplements for all of these reasons and more.

To learn more about the best nitric oxide booster supplements and how they work, or to buy the top-ranked formulas available today, check out any of the top-ranked options on our list of the best nitric oxide boosters of 2022.

RELATED:Top 15 Best Male Fertility Supplements of 2022

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