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Men's health · Honest review

Erection Trouble and Blood Flow: What the Science Says, and an Honest Look at Nitric Boost

Erectile problems are common, personal and often a sign worth listening to. Here is what research says about blood flow and nitric oxide, what lifestyle changes have evidence, and where a supplement fits in.

3–5 yrs
Erectile dysfunction can show up about three to five years before heart disease symptoms, because the same artery narrowing is behind both.
Mayo Clinic

Key takeaways

  • Erectile dysfunction (ED) is often a blood-vessel problem, and it can be an early warning sign of heart disease, so it deserves a doctor's visit.
  • In a two-year randomized trial of obese men with ED, a weight-loss and activity program helped about one in three regain normal function, versus about one in twenty in the comparison group.
  • Below: what Nitric Boost claims, what research exists on its ingredients, and why some ingredients matter for anyone who takes heart or blood pressure medicine.

Why erections depend on blood flow

An erection needs healthy blood vessels. Nitric oxide, a gas the body makes, helps vessels relax and widen so blood can flow in. When arteries narrow because of atherosclerosis, that flow can fall short. The arteries that supply the penis are smaller than those supplying the heart, so narrowing often shows up there first.

According to the Mayo Clinic, ED can precede heart disease symptoms by about 3 to 5 years, and shared risk factors include high cholesterol, high blood pressure, inactivity, excess weight, smoking and diabetes.

Worth saying plainly: if you have new or persistent ED, see a doctor. It can be an early sign of heart disease or diabetes, and it can also come from medicines, hormones, stress or depression. Treating the cause matters more than the symptom.

Honest caveat: the official Nitric Boost page tells a different story, in a "news" style article claiming that doctors have had it wrong and that ED is caused by a "manhood molecule" (cGMP) deficiency. We found no journal, authors or study behind that article, so we treat it as marketing, not science. It is true that the nitric oxide-cGMP pathway matters for erections; that is how prescription ED drugs work.

What to put on your plate (and what to skip)

Because ED and heart disease share the same risk factors, eating for your arteries is a sensible starting point.

Vegetables, fruit and legumesFill half your plate; they also help with weight control.
Fish, nuts and olive oilHeart-friendly fats instead of fried and processed foods.
Whole grainsSwap refined breads and sweets for whole-grain versions.
Quit smoking, go easy on alcoholSmoking is one of the shared risk factors for ED and heart disease.

Reality check: no single food or powder fixes ED. The strongest evidence we found is for the overall program of weight loss, activity and healthy eating, described next.

Move to move the blood

In a JAMA trial (Esposito et al., 2004), 110 obese men aged 35 to 55 with ED were followed for two years. Half got detailed advice on losing at least 10% of their body weight with diet and more activity; half got only general information.

17 of 55men in the lifestyle group reached normal erectile-function scores
3 of 55men in the comparison group did
  • Weekly activity in the lifestyle group rose from 48 to 195 minutes.
  • Aim for brisk walking, cycling or swimming most days, plus strength training twice a week, with your doctor's approval.
  • Sleep well and manage stress, which also affect sexual function.

Caveat: participants had no diabetes, high blood pressure or heart disease, were highly motivated, and followed an intensive program at one clinic, so results may be harder to repeat in everyday life.

Nitric Boost review: what it is and what it claims

Nitric Boost is a powder, taken as one scoop a day, marketed to support sexual performance by increasing nitric oxide. Per the official page it combines eight ingredients "pointed at the same target":

Nitric oxide precursorsBeet root powder, L-arginine, L-citrulline DL-malate
Vessel supportNiacin (vitamin B3), ginkgo biloba, dong quai
Traditional "performance" ingredientsHorny goat weed (icariin), D-aspartic acid

Evidence check

What we found when we searched for published research. Evidence on a single ingredient does not prove the blend works.

L-arginineThe Mayo Clinic says oral L-arginine might improve sexual function in men with ED due to a physical cause, but it also warns it can drop blood pressure too low when combined with nitrates, sildenafil or blood pressure drugs, and may raise bleeding risk with blood thinners.
Horny goat weedHuman evidence is limited. A review of the research notes that its active compound, icariin, blocked PDE5 in a test-tube study but was far weaker than sildenafil, and that much of the other work is in animals. Memorial Sloan Kettering lists flushing, rapid heartbeat and cautions for people with heart disease or high blood pressure.
Citrulline, beet root, niacin, ginkgo, dong quai, D-aspartic acidWe did not review each in depth. The page explains them with plausible mechanisms (more nitric oxide, healthier vessels, more testosterone), but we did not find trials of this combination in men with ED.
The "manhood molecule" storyThe "breaking news" article and the "47% of men report declining effectiveness" figure on the page have no named source. The four references listed below it are general papers on ED and nitric oxide; they are not trials of Nitric Boost.
The finished formulaWe found no published clinical trial of Nitric Boost, and the amounts per scoop were not shown on the page we reviewed.
What we like
  • A 60-day money-back guarantee, per the official page
  • Its ingredient list is disclosed, not hidden in a proprietary blend name (amounts are not shown)
  • The FAQ tells buyers to consult a doctor and not to stop medications on their own
What to keep in mind
  • Statements are not evaluated by the FDA; it is not a treatment for ED or any disease
  • If you take nitrates (for chest pain), sildenafil or similar drugs, or blood pressure medicine, the combination with L-arginine can lower blood pressure dangerously. Ask your doctor first
  • Ginkgo and L-arginine may add to the effect of blood thinners
  • Testimonials are personal stories, not proof; results vary
  • Prices on the official page at our review ranged from $49 to $69 per jar depending on the package; check current terms

Our take: the idea behind the formula is plausible on paper, and L-arginine has some limited support, but nothing we found shows that this blend works, and it can interact with common heart and blood pressure medicines. If you are curious, the guarantee lowers the financial risk, but see a doctor about the cause of ED first and run any supplement past them.

Curious about the full ingredient list and guarantee?

Read the details yourself on the official Nitric Boost page and decide with your doctor.

See the official Nitric Boost page →

Affiliate link: we may earn a commission at no extra cost to you.

Frequently asked questions

Does Nitric Boost work for erectile dysfunction?

Nobody can say for sure. We found no published clinical trial of the complete formula. L-arginine has limited support in ED from a physical cause, but the evidence for the other ingredients and the blend is thin. Customer stories are not proof, and results vary.

Is Nitric Boost safe?

The brand says it is made in a GMP-certified facility and advises consulting a doctor. Still, L-arginine can lower blood pressure too much when combined with nitrates, sildenafil or blood pressure medicine, and ginkgo may affect bleeding. Ask your doctor or pharmacist first.

Can ED be a sign of something serious?

Yes. The Mayo Clinic notes that ED can come 3 to 5 years before heart disease symptoms. A visit to your doctor is worth it.

What helps ED without pills?

In a two-year trial, weight loss, more physical activity and healthier eating helped about one in three obese men with ED regain normal function. Quitting smoking, moderating alcohol and treating conditions such as high blood pressure and diabetes also matter.

Are "male enhancement" supplements always safe?

No. In 2013 the FDA warned about six sexual-enhancement supplements that contained undisclosed prescription drugs, including sildenafil, which can be dangerous for men taking nitrates. This is a reason to buy only from official sellers and to talk to your doctor.

Sources

  1. Mayo Clinic. Erectile dysfunction could be early indicator of heart disease.
  2. Esposito K, et al. Effect of lifestyle changes on erectile dysfunction in obese men. JAMA 2004;291:2978-2984.
  3. Mayo Clinic. L-arginine: uses, safety and interactions.
  4. Healthline. Horny goat weed and erectile dysfunction.
  5. FDA warning, June 2013, on sexual-enhancement supplements with hidden drugs (news report).

How we reviewed this: we read the official Nitric Boost page and searched for published research on erectile dysfunction, lifestyle and the main ingredients. We did not review every ingredient in depth. This article has not had a clinician's medical review. It is for information only and is not medical advice. Dietary supplements are not intended to diagnose, treat, cure or prevent any disease. Talk to your doctor before changing your routine.