Can NMN Help Stabilize Blood Pressure?
As people age, many experience mildly elevated blood pressure.
Sustained high blood pressure is a significant risk factor for cardiovascular and cerebrovascular diseases.
In recent years, nicotinamide mononucleotide (NMN) has garnered considerable attention for its purported ability to enhance NAD+ levels in the body, thereby exerting anti-aging and metabolic-improving effects.
But can NMN supplements truly regulate blood pressure?
Recent scientific research provides a clear answer.
A systematic review and meta-analysis published in the journal Nutrients in 2026 synthesized data from 10 high-quality randomized controlled trials worldwide, encompassing 349 adults with elevated blood pressure, to comprehensively evaluate the effects of NMN supplementation on blood pressure.
The study participants primarily comprised individuals with mildly elevated blood pressure or stage 1 hypertension;
those with moderate-to-severe hypertension were excluded.
The intervention period ranged from 4 to 12 weeks, with daily NMN doses between 250 and 1,500 mg—within the range considered safe for daily consumption.
NMN Has a Regulating Effect on Blood Pressure
The results indicate that NMN supplements exert a mild yet definite regulatory effect on blood pressure.
Overall, compared to those taking a placebo, NMN supplementation reduced diastolic blood pressure by an average of 2.15 mmHg, a decrease that reached statistical significance.
A reduction of 2 mmHg in diastolic blood pressure is associated with a 6% decrease in coronary heart disease risk and a 15% decrease in stroke risk, carrying positive implications for cardiovascular health.
However, the overall improvement in systolic blood pressure was not significant, with an average reduction of 1.58 mmHg that did not reach statistical significance.
Regulating Effect of NMN Varies by Age
Notably, the blood pressure-lowering effect of NMN demonstrates marked age differences, with individuals aged 60 and older being the primary beneficiaries.
Subgroup analysis revealed that NMN supplementation reduced systolic blood pressure by an average of 3.94 mmHg in those over 60, an effect that was statistically significant.
In contrast, no significant improvement in systolic blood pressure was observed in individuals under 60.
This disparity is closely linked to vascular changes associated with aging:
as people age, NAD+ levels decline, vascular endothelial function weakens, and elasticity deteriorates, predisposing blood pressure to rise.
As a precursor to NAD+, NMN can elevate NAD+ levels, activate vascular protective enzymes, and improve vascular function in older adults, thereby reducing systolic blood pressure.
Safety is a major concern for the general public.
The study confirmed that NMN supplements are safe at routine doses, with adverse effects being mild and rare.
A small number of individuals may experience minor gastrointestinal discomfort such as diarrhea or abdominal pain, which is typically transient and self-resolving;
these symptoms were not definitively linked to NMN, and no serious adverse reactions were reported.
It is important to clarify that NMN is not an antihypertensive drug and cannot replace pharmaceutical treatment for hypertension.
Current research only confirms its auxiliary regulatory role in individuals with mildly elevated blood pressure or early-stage hypertension;
its effects on moderate-to-severe hypertension remain unknown.
Furthermore, the studies have limitations, including small sample sizes, short durations, and geographic constraints;
long-term effects still require validation through additional research.
In summary, NMN supplements can mildly reduce diastolic blood pressure and significantly improve systolic blood pressure in individuals aged 60 and older, with a favorable safety profile.
They are suitable as a health adjunct for those with early-stage elevated blood pressure.
However, blood pressure regulation cannot rely on a single supplement alone.
It must be combined with healthy lifestyle practices such as a low-salt diet, regular exercise, smoking cessation, and limited alcohol consumption, along with regular blood pressure monitoring and medical intervention as prescribed, to better safeguard cardiovascular health.
Reference:
Zhang M, Chen Y, Jiang N, et al. Effects of Nicotinamide Mononucleotide Supplementation on Blood Pressure: A Systematic Review and Meta-Analysis of Randomized Controlled Trials[J]. Nutrients, 2026, 18(6): 890.
*Special note - This article is for informational purposes only and cannot replace a doctor's treatment diagnosis and advice. It should not be regarded as a recommendation or proof of efficacy of the medical products involved. If it involves disease diagnosis, treatment, and rehabilitation, please be sure to go to a professional medical institution to seek professional advice.
by GSHWORLD
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