NMN by GNC Preventive Nutrition — Ingredients, Evidence & Safety

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Safety Alerts

⚠️ Beta-Nicotinamide Mononucleotide: 150mg is 4.3× the Tolerable Upper Intake Level (35mg)

This product received a low safety score because the amount of Beta-Nicotinamide Mononucleotide in a single dose is more than four times higher than the recommended maximum daily limit.

Label Data

1 Capsule(s) Serving Size

60 Servings

Non-Nutrient/Non-Botanical Product Type

100% Evidence Coverage

Supplement Facts — Evidence Check

Beta-Nicotinamide Mononucleotide

150 mg

⚠️ Exceeds Tolerable Upper Intake Level by 4.3× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)

RDA 14mg This product: 150mg UL 35mg

Other Ingredients

Microcrystalline Cellulose Hydroxypropyl Methylcellulose Magnesium Stearate Silicon Dioxide

Label Claims — Verification

❓ All Other

❓ Structure/Function

All Other (100% of products) Structure/Function (90% of products) Nutrient (2% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take one capsule daily with food.

⚠️ Warnings & Precautions

Warning: Consult with your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition.

Discontinue use two weeks before surgery.

Keep out of reach of children.

🧪 Formulation Notes

Made in USA with globally sourced ingredients.

B-Nicotinamide Mononucleotide Contains 150 mg NMN per capsule NMN can be naturally converted to NAD+ in the body

Supports production of NAD+, which helps with DNA repair

Additional Information

For more information: 1-888-462-2548 GNC.com

Scientifically formulated

60-Day supply

Store in a cool, dry place.

Product Details

UPC / SKU 8 53913 00349 7

DSLD Entry Date 2023-12-14

Product Type Non-Nutrient/Non-Botanical

Form Capsule

Brand GNC Preventive Nutrition

DSLD ID 304447

Data Updated 2026-04-11

Research Evidence

8 Research Sources

54 Avg Quality Score

4 Rct

2 Meta Analysis

2 Clinical Trial

B Efficacy of oral nicotinamide mononucleotide supplementation on glucose and lipid metabolism for adults: a systematic review with meta-analysis on randomized controlled trials

Meta Analysis Critical reviews in food science and nutrition 2025

PubMed DOI

B Ingestion of β-nicotinamide mononucleotide increased blood NAD levels, maintained walking speed, and improved sleep quality in older adults in a double-blind randomized, placebo-controlled study

Rct GeroScience 2024

PubMed DOI

C Nicotinamide mononucleotide increases muscle insulin sensitivity in prediabetic women.

Rct Science (New York, N.Y.)

PubMed DOI

C The efficacy and safety of β-nicotinamide mononucleotide (NMN) supplementation in healthy middle-aged adults: a randomized, multicenter, double-blind, placebo-controlled, parallel-group, dose-dependent clinical trial.

Rct GeroScience

PubMed DOI

C Effects of Nicotinamide Mononucleotide on Glucose and Lipid Metabolism in Adults: A Systematic Review and Meta-analysis of Randomised Controlled Trials

Meta Analysis Current diabetes reports 2024

PubMed DOI

C Nicotinamide adenine dinucleotide metabolism and arterial stiffness after long-term nicotinamide mononucleotide supplementation: a randomized, double-blind, placebo-controlled trial

Rct Scientific reports 2023

PubMed DOI

C Safety and Pharmacokinetics of Nicotinamide Mononucleotide (NMN) in Healthy Adults.

Clinical Trial ClinicalTrials.gov 2021

ClinicalTrials.gov

C Effect of 'Nicotinamide Mononucleotide' (NMN) on Cardiometabolic Function

Clinical Trial ClinicalTrials.gov 2017

ClinicalTrials.gov

View all evidence for Nmn →