Niatrol 500 mg by tnvitamins — Ingredients, Evidence & Safety

Product Label

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Safety Alerts

⚠️ Niacin: 500mg is 14.3× the Tolerable Upper Intake Level (35mg)

The safety score is low because the amount of niacin in this supplement is more than 14 times the recommended maximum daily limit.

Label Data

1 Capsule(s) Serving Size

Vitamin Product Type

100% Evidence Coverage

Supplement Facts — Evidence Check

Niacin

500 mg (2500% DV)

⚠️ Exceeds Tolerable Upper Intake Level by 14.3× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)

RDA 14mg This product: 500mg UL 35mg

Other Ingredients

Gelatin Capsule Vegetable Magnesium Stearate Rice powder Silica

Label Claims — Verification

❓ Nutrient

❓ All Other

❓ Structure/Function

All Other (97% of products) Structure/Function (86% of products) Nutrient (36% of products)

Target Groups

Adult (18 - 50 Years) Women (not pregnant or lactating) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Directions: For adults, take one (1) capsule daily, preferably with a meal, or as directed by a health care professional.

⚠️ Warnings & Precautions

Warning: Not intended for pregnant and nursing women. If you are taking any medications or have any medical condition, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

Keep out of reach of children.

🧪 Formulation Notes

No-flush niacin (inositol hexanicotinate)

Free of: Gluten, wheat, yeast, milk, lactose, soy, artificial color, artificial flavor, artificial sweetener, preservatives, Non GMO.

Additional Information

Reorder tnvitamins.com 800-645-4446

Product Details

UPC / SKU 0 95234 19491 5

DSLD Entry Date 2020-04-23

Product Type Vitamin

Form Capsule

Brand tnvitamins

DSLD ID 217632

Data Updated 2026-04-11

Research Evidence

241 Research Sources

55 Avg Quality Score

113 Meta Analysis

75 Systematic Review

32 Rct

11 Clinical Trial

3 Other

3 Regulatory Source

1 Cochrane Review

1 Narrative Review

1 Openfda Safety

A Niacin for primary and secondary prevention of cardiovascular events

Meta Analysis The Cochrane database of systematic reviews 2017

PubMed DOI Cochrane

A Use of high potency statins and rates of admission for acute kidney injury: multicenter, retrospective observational analysis of administrative databases

Meta Analysis BMJ (Clinical research ed.) 2013

PubMed DOI

A Effect on cardiovascular risk of high density lipoprotein targeted drug treatments niacin, fibrates, and CETP inhibitors: meta-analysis of randomised controlled trials including 117,411 patients

Meta Analysis BMJ (Clinical research ed.) 2014

PubMed DOI

A A terminal metabolite of niacin promotes vascular inflammation and contributes to cardiovascular disease risk

Meta Analysis Nature medicine 2024

PubMed DOI

A Meta-analysis and imputation refines the association of 15q25 with smoking quantity

Meta Analysis Nature genetics 2010

PubMed DOI

A Genome-wide meta-analyses identify multiple loci associated with smoking behavior

Meta Analysis Nature genetics 2010

PubMed DOI

A Antidepressants for smoking cessation

Meta Analysis The Cochrane database of systematic reviews 2014

PubMed DOI

A Topical azelaic acid, salicylic acid, nicotinamide, sulphur, zinc and fruit acid (alpha-hydroxy acid) for acne

Meta Analysis The Cochrane database of systematic reviews 2020

PubMed DOI Cochrane

B Assessment of the Role of Niacin in Managing Cardiovascular Disease Outcomes: A Systematic Review and Meta-analysis

Meta Analysis JAMA network open 2019

PubMed DOI

B Association Between Lowering LDL-C and Cardiovascular Risk Reduction Among Different Therapeutic Interventions: A Systematic Review and Meta-analysis

Meta Analysis JAMA 2016

PubMed DOI

View all evidence for Niacin →