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Niacinamide 1000 mg

product on market Tablet or Pill NOW Safety: 60/100
60/100

Review before taking

  • Niacin: 1000mg is 28.6× the Tolerable Upper Intake Level (35mg)
  • 100% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Niacin supports energy metabolism and lipid profiles, though research evidence for this specific formulation is limited. Due to the safety score, users should be aware of potential side effects such as skin flushing. Consult a professional regarding high dosages.

AI-generated summary based on research evidence. Not medical advice.

Alerts

Safety Alerts

Niacin: 1000mg is 28.6× the Tolerable Upper Intake Level (35mg)

AI-generated · Qwen 3.6 · grounded in 2 sources · methodology

This product received a low safety score because the amount of Niacinamide is nearly 29 times higher than the recommended upper limit for daily intake.

Label

Product Label

Label for Niacinamide 1000 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
90
Servings
Vitamin
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

1000 mg (6250% DV)
Exceeds UL by 28.6× (UL: 35 mg) 196 studies (A:5, B:63)

Other Ingredients

Microcrystalline Cellulose Stearic Acid Hypromellose Sunflower Lecithin Triethyl Citrate Silicon Dioxide
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested use: Take 1 tablet daily with a meal.

Warnings & Precautions

Caution: For adults only.

Consult a physician if pregnant/nursing, taking medication, or have a medical condition (liver problems, stomach ulcers, diabetes, gout, etc.)

Keep out of reach of children.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Formulation Notes

Niacinamide (Vitamin B-3) is a form of niacin, a water soluble B-vitamin. It is a derivative of niacin that does not cause the "flush" normally associated with taking high doses of niacin. Niacinamide is readily converted into the bioactive forms of niacin, NAD+, NADH, NADP, NADPH, which are vital cofactors in cellular energy production and are critical for the maintenance of DNA stability.

Natural color variation may occur in this product.

Energy production

Vitamin B-3, No flush

Non-GMO

Vegetarian/Vegan

Vitamins

Made and quality tested in the USA with globally sourced ingredients.

Niacinamide and niacin are two different forms of vitamin B-3. Niacinamide does not cause a niacin flush.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.

Additional Information

Store in a cool, dry place after opening.

GMP Quality Assured

Family owned since 1968.

Metadata

Product Details

UPC / SKU7 33739 00451 2
DSLD Entry Date2023-05-24
Product TypeVitamin
FormTablet or Pill
BrandNOW
DSLD ID292056
Data Updated2026-04-11
Research

Research Evidence

241
Research Sources
55
Avg Quality
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
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
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 →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.