Does Nitric Oxide Help Sexually?

Does nitric oxide help sexually? Discover how NO can help improve your sexual function including improving erectile dysfunction and PE.

The Promescent Team
Hands on, practical experience – this is our expertise
by The Promescent Team Last updated 12/11/2023
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is viagra and nitric oxide the same

Does nitric oxide help sexually? Given how sexual function issues are incredibly anxiety-inducing, this is an important question to answer.

People who deal with things like premature ejaculation (PE) and erectile dysfunction (ED) often spend a lot of time researching what's causing the problem. Inevitably, nitric oxide comes up as an option.

Quick FAQs

Nitric oxide can boost sexual performance by supporting stronger erections, increasing lubrication in women, and preventing premature ejaculation.

While both can help with having stronger erections, they are not the same. Viagra is a prescription medication, and nitric oxide is a molecule produced by the body.

A few symptoms that may be a sign of low nitric oxide include vision changes, high blood pressure, and fatigue.

Nitric oxide (NO) is vital to encourage blood flow and support many biological functions. But can nitric oxide help erectile dysfunction or other sexual issues when taken in supplement form?

Does Nitric Oxide Help Sexually?

Nitric oxide can help people sexually through supporting stronger erections, preventing premature ejaculation, and increasing lubrication in women. Scientifically, nitric oxide is a type of gas the human body produces when dietary nitrates are metabolized.

NO is often referred to as a "signaling molecule" because it mediates different physiological processes by signaling certain cells. This one molecule influences the nervous system, immune response, blood circulation, and more. 

NO is so important, in fact, that it has some role or influence on almost all organ and cellular functions. Therefore, nitric oxide does play an important role in human sexual function, but in different ways.

Here’s more information how nitric oxide and sex go hand in hand.

Stronger Erections

One of the most noteworthy roles of nitric oxide in sexual function is supporting strong erections. The smooth muscle tone in the penis governs whether the penis is erect or flaccid (soft). 

In order for an erection to occur, the smooth muscles of the penis must relax, which allows blood to fill the blood vessels and cause an erection.

Nitric oxide is the primary agent that encourages the penile muscles to relax to allow blood flow to the area. Therefore, lacking NO or low NO could mean the smooth muscles don't relax enough to allow proper blood flow to infiltrate and create a strong erection.

It is common knowledge that men who have heart disease are often at risk of ED. Not surprisingly, men who have issues with heart disease also have a defect in terms of nitric oxide activity.

Prevention of Premature Ejaculation

Premature ejaculation is the most common type of sexual dysfunction in men, but even this common problem may be influenced by nitric oxide.

PE is a diverse issue that can have many underlying causes, including performance anxiety, stress, hormones, and genetics.

While there are variances as far as what constitutes PE, PE is diagnosable when ejaculation happens within 1 to 4 minutes of starting sexual activity.

Despite the research into nitric oxide and PE being relatively limited, at least one study has pointed out that low NO is associated with ejaculating too quickly during sex. 

Researchers suggested that nitric oxide may affect both peripheral and central mechanisms that control ejaculatory times. But amore effective option for treating PE worth considering is climax control spray

Increased Lubrication in Women

Even though nitric oxide and sex are assumed to be topics associated only with male sexual function, NO also supports female sexual function.

NO happens to be critical for vaginal lubrication, and vaginal lubrication is critical to enjoyable sex. Lubrication is a physiological process that relies on ample blood flow to the vagina and clitoris. The signaling molecule NO regulates both clitoral and vaginal blood flow.

Estrogen plays a role in influencing the physiological process that takes place during female arousal. However, without endothelial NO production, proper blood flow to the female genitalia and resulting lubrication can be interrupted.

Is Viagra and Nitric Oxide the Same?

Viagra and nitric oxide are not the same things, even though both can encourage stronger erections.

Viagra (sildenafil) is a prescription medication used to treat erectile dysfunction. This medication is classified as a PDE-5 (phosphodiesterase 5) inhibitor, which means Viagra works by blocking the enzyme (PDE-5) that plays a part in regulating blood flow to the penis.

However, by inhibiting PDE-5, Viagra also enhances the vasodilation that occurs due to the presence of NO.

Nitric oxide is produced by the body on its own. It’s  necessary to relax smooth muscles in the penis to encourage blood flow and cause an erection.

Both Viagra and nitric oxide may help with ED but in different ways.

Signs of Low Nitric Oxide

Signs of low nitric oxide are not always straightforward, and symptoms can vary depending on the individual.

Because lacking NO can impact many bodily processes and functions, it can be difficult to pinpoint that nitric oxide deficiency is the root cause of certain symptoms. Nevertheless, NO deficiency may lead to certain signs, such as:

Naturally, due to the many ways that nitric oxide influences sexual function, issues with sexual function may potentially be an indicator of low NO.

How to Get Nitric Oxide Through Dieting

Adjusting your nutritional intake can be one of the best ways to support NO levels in the body. Foods that enhance nitric oxide levels are rich in what are referred to as dietary nitrates.

A few foods to include in your everyday intake include:

  • Garlic - May enhance NO by 40 percent within 60 minutes of intake due to L-arginine
  • Dark chocolate - May boost NO due to a high concentration of flavanols
  • Beets - May boost NO levels by as much as 21 percent 45 minutes after intake due to nitrates
  • Leafy green veggies - Rich in vitamin C and nitrates to support NO levels
  • Citrus fruits - Vitamin C enhances the bioavailability of NO
  • Watermelon - Enhances the bioavailability of NO due to the amino acid citrulline

With these foods in mind, you may be able to boost nitric oxide before sex by eating certain foods. It might result in positive outcomes with sexual function.

However, a simpler way to keep nitric oxide levels in a good place is to look for supplements that contain nitrates known to boost NO levels automatically.

For example, VitaFLUX daily supplements from Promescent contain ingredients like L-arginine and L-citrulline to naturally enhance the production of nitric oxide in the body. 

These supplements support sexual function through NO production, as well as hormone support, which is just as important to satisfying sex.

Takeaways to Remember on Nitric Oxide and Sex

Nitric oxide is a gaseous molecule naturally produced by the human body. It is hugely important to proper sexual function for both men and women.

Proper NO levels may help with everything from PE and ED to vaginal lubrication. A number of foods can possibly support nitric oxide and sex, such as watermelon, beets, and dark chocolate.

If you suspect low NO levels are interfering with your sexual performance, taking a NO-boosting supplement like VitaFLUX may be the simplest route to better sex.

The Promescent Team

The Promescent Team

Our team has over a decade of experience in the sexual wellness field and are experts in sexual dysfunctions, like premature ejaculation. We help couples and individuals better understand treatment options available for different types of sexual needs and educate the public on all things related to intimacy. All of our authored content is medically reviewed for accuracy and reliability.


Absorption Pharmaceuticals LLC (Promescent) has strict informational citing guidelines and relies on peer-reviewed studies, academic or research institutions, medical associations, and medical experts. We attempt to use primary sources and refrain from using tertiary references and only citing trustworthy sources. Each article is reviewed, written, and updated by Medical Professionals or authoritative Experts in a specific, related field of practice. You can find out more about how we ensure our content is accurate and current by reading our editorial policy.

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The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

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