vitamin
Niacin supplements
Half of the 12,413 niacin supplements in the NIH label database that print an amount list 20 mg or less per serving; the middle half list 13.2 mg to 48 mg, and 35% of the 12,334 with a plausible amount give more than the adult upper limit at the most servings their labels direct (DSLD version 9.4.0, January 2026). The 295 products whose only supplement ingredient is niacin list a median of 500 mg, and 98% of them give more than the upper limit.
- Products listing it
- 12,77912,413 print an amount; 359 list it inside a blend without an amount
- Median per serving
- 20 mgmiddle half 13.2 mg to 48 mg
- FDA Daily Value
- 16 mgthe median is 125% of it
- Adult upper limit (IOM)
- 35 mg4,377 products go above it a day
How much niacin do supplements contain?
The median product lists 20 mg per serving. One in ten lists 5 mg or less, one in ten 100 mg or more. The amount printed most often is 20 mg (2,521 products).
Products by amount of niacin per serving
12,413 products, log scale; extreme 0.2% at each end left out of the drawing.
Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).
How do the amounts compare with the Daily Value and the upper limit?
The FDA Daily Value for niacin is 16 mg (adults and children 4 and older). The median product gives 125% of it per serving; the 90th percentile 625%.
The adult Tolerable Upper Intake Level is 35 mg a day (synthetic forms from supplements and fortified foods). At the most servings their labels direct, 4,377 of the 12,334 products with a plausible amount (35.5%) give more than that from the supplement alone (what counts as plausible).
The upper limit is for total intake from food, water and supplements unless stated, and does not apply under medical supervision. A label amount is what the maker printed. This is data, not advice: the NIH ODS fact sheets explain what each nutrient does.
Sources: 21 CFR 101.9(c)(8)(iv) (Daily Values); Institute of Medicine, DRI summary tables (2011) (upper limits); on reading them, the FDA's Daily Value page.
Which products list the most niacin?
On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).
- NiaPlexKaruna1,000 mg
- Hb HDL BenefitPRN Physician Recommended Nutriceuticals1,000 mg
- Vitamin B3 Niacin 1000 mgLife Extension1,000 mg
- Niacinamide 1,000 mgNature's Life1,000 mg
- Memory BoostHighland Laboratories1,000 mg
- Timed Release Niacin 100 mgRugby1,000 mg
- First Step VitaminsVitalBulk1,000 mg
- Niacin 1000 mgVitalBulk1,000 mg
Have the amounts changed over the years?
Products whose current label entered DSLD in 2011 list a median of 26 mg; those entered in 2025, 20 mg.
| Year | Products | Median per serving |
|---|---|---|
| 2011 | 287 | 26 mg |
| 2012 | 850 | 25 mg |
| 2013 | 1,066 | 20 mg |
| 2014 | 648 | 20 mg |
| 2015 | 635 | 20 mg |
| 2016 | 566 | 20.2 mg |
| 2017 | 637 | 25 mg |
| 2018 | 565 | 20 mg |
| 2019 | 679 | 20 mg |
| 2020 | 1,065 | 20 mg |
| 2021 | 1,006 | 20 mg |
| 2022 | 1,181 | 20 mg |
| 2023 | 997 | 20 mg |
| 2024 | 1,185 | 20 mg |
| 2025 | 1,046 | 20 mg |
Source: DSLD label entry dates and amounts, current labels.
In which products and brands?
Products listing niacin by DSLD product type
Brands listing it most: Douglas Laboratories (253), Nature's Way (232), Nature's Plus (208), Bronson (96), Cellucor (92), Country Life (86), NOW (81), ProCaps Laboratories (79), Metagenics (78), Rainbow Light (75).
Every product listing niacin
12,779 products, A to Z by name (page 241 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Vitamin B Complex 350 mgUniversal Nutrition / Universal Naturals50 mg
- Vitamin B Complex 461 mgDr. Clark Research Association Dr. Clark Zentrum100 mg
- Vitamin B Complex 50Schiff50 mg
- Vitamin B Complex Gummy Strawberry FlavorMeijer10 mg
- Vitamin B Complex High Potency B Vitaminsup&up50 mg
- Vitamin B Complex MaxiKroger200 mg
- Vitamin B Complex PlusSwiss BioEnergetics50 mg
- Vitamin B Complex Supplement Adult Gummy Vitamin Natural Strawberry FlavorSpring Valley20 mg
- Vitamin B Complex Supplement Natural Strawberry FlavorSpring Valley20 mg
- Vitamin B Complex With B12, B6 & Folic AcidL.A. Naturals20 mg
- Vitamin B Complex with BenfotiamineDr. Mercola20 mg
- Vitamin B Complex with BiotinNatures Nectar100 mg
- Vitamin B Complex with CLongs Wellness · off the market50 mg
- Vitamin B Complex with ElectrolytesMeijer20 mg
- Vitamin B Complex with Vitamin CMeijer50 mg
- Vitamin B Dual-ActionNutrilite20 mg
- Vitamin B Tablets (Adults)KR · off the market27 mg
- Vitamin B+ Complex GummiesNew Age24 mg
- Vitamin B-100Radiance100 mg
- Vitamin B-100OL Olympian Labs · off the market100 mg
- Vitamin B-100Nature's Blend100 mg
- Vitamin B-12Highland Laboratories2 mg
- Vitamin B-125 ComplexSwanson Premium Brand · off the market125 mg
- Vitamin B-50Safeway Care50 mg
- Vitamin B-50OL Olympian Labs50 mg
- Vitamin B-50 B-ComplexRite Aid50 mg
- Vitamin B-50 ComplexBIOVEA50 mg
- Vitamin B-50 Complex 50 mgBIOVEA50 mg
- Vitamin B-6 50 mgHighland Laboratories2 mg
- Vitamin B-ComplexDouglas Laboratories50 mg
- Vitamin B-ComplexPlus Pharma20 mg
- Vitamin B-ComplexOptimum15 mg
- Vitamin B-ComplexDivine Bounty20 mg
- Vitamin B-ComplexNaturaLife Labs20 mg
- Vitamin B-ComplexKirkman11 mg
- Vitamin B-Complex 100Solaray100 mg
- Vitamin B-Complex 100 mgMartin Avenue Pharmacy100 mg
- Vitamin B-Complex 50Solaray50 mg
- Vitamin B-Complex 50 mgSolaray50 mg
- Vitamin B-Complex 75 Timed ReleaseSolaray75 mg
- Vitamin B-Complex with Vitamin CBronson25 mg
- Vitamin B-Complex with Vitamin CFuturebiotics25 mg
- Vitamin B12Natures Plus Source of Life Garden2.5 mg
- Vitamin B12 100ProCaps Laboratories5 mg
- Vitamin B12 250ProCaps5 mg
- Vitamin B12 500ProCaps Laboratories5 mg
- Vitamin B12-250ProCaps Laboratories5 mg
- Vitamin B3BulkSupplements.com500 mg
- Vitamin B3BioCare100 mg
- Vitamin B3 Niacin 1000 mgLife Extension1,000 mg