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 14 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Alive! Multi-VitaminNature's Way125 mg
- Alive! Multi-Vitamin Adult GummiesNature's Way8 mg
- Alive! Multi-Vitamin Children's ChewablesNature's Way · off the market20 mg
- Alive! Multi-Vitamin GummiesNature's Way · off the market5 mg
- Alive! Multi-Vitamin Kids Chewables Orange & Berry Fruit FlavorsNature's Way · off the market8 mg
- Alive! Multi-Vitamin Max Potency Citrus FlavoredNature's Way · off the market20 mg
- Alive! Once DailyNature's Way · off the market50 mg
- Alive! Once Daily Men'sNature's Way · off the market50 mg
- Alive! Once Daily Men's 50+Nature's Way50 mg
- Alive! Once Daily Men's 50+ Ultra PotencyNature's Way · off the market40 mg
- Alive! Once Daily Men's 50+ Ultra Potency Complete MultivitaminNature's Way · off the market40 mg
- Alive! Once Daily Men's Ultra MultivitaminNature's Way · off the market40 mg
- Alive! Once Daily Men's Ultra PotencyNature's Way · off the market40 mg
- Alive! Once Daily Men's Ultra Potency Complete MultivitaminNature's Way · off the market40 mg
- Alive! Once Daily Multi-VitaminNature's Way · off the market50 mg
- Alive! Once Daily Multi-Vitamin Ultra PotencyNature's Way · off the market40 mg
- Alive! Once Daily Women'sNature's Way · off the market50 mg
- Alive! Once Daily Women's 50+Nature's Way · off the market16 mg
- Alive! Once Daily Women's 50+ Ultra PotencyNature's Way · off the market40 mg
- Alive! Once Daily Women's 50+ Ultra Potency Complete MultivitaminNature's Way · off the market40 mg
- Alive! Once Daily Women's EnergyNature's Way · off the market16 mg
- Alive! Once Daily Women's Multi-VitaminNature's Way · off the market50 mg
- Alive! Once Daily Women's Ultra PotencyNature's Way · off the market40 mg
- Alive! Once Daily Women's Ultra Potency Complete MultivitaminNature's Way · off the market40 mg
- Alive! Premium Prenatal GummiesNature's Way · off the market18 mg
- Alive! Premium Prenatal Gummies Strawberry & Lemon FlavoredNature's Way18 mg
- Alive! Prenatal GummiesNature's Way · off the market18 mg
- Alive! Prenatal Gummies with 50 mg Plant DHANature's Way · off the market18 mg
- Alive! Prenatal Gummy VitaminsNature's Way · off the market18 mg
- Alive! Prenatal Multi-Vitamin With Plant DHANature's Way · off the market20 mg
- Alive! Prenatal Multi-Vitamin with Plant DHA Strawberry FlavoredNature's Way20 mg
- Alive! Prenatal Multi-Vitamin With Plant DHA Strawberry/Lemon Flavored GummiesNature's Way · off the market20 mg
- Alive! Prenatal Multivitamin GummyNature's Way18 mg
- Alive! Protein VanillaNature's Wayin a blend
- Alive! Sport Tropical Fruit FlavoredNature's Wayin a blend
- Alive! Super Fruits KidsNature's Way2 mg
- Alive! Super Fruits Women'sNature's Way16 mg
- Alive! Super Fruits Women's 50+Nature's Way16 mg
- Alive! Super Fruits Women's Complete MultiNature's Way16 mg
- Alive! Teen Complete Multi for Her Citrus Burst FlavorNature's Way · off the market4 mg
- Alive! Teen Complete Multi for Her Citrus Burst FlavoredNature's Way4 mg
- Alive! Teen Complete Multi for HimNature's Way4 mg
- Alive! Ultra Shake Vanilla FlavoredNature's Way125 mg
- Alive! Ultra-Shake VanillaNature's Way · off the market125 mg
- Alive! Whole Food Energizer Max PotencyNature's Way · off the market125 mg
- Alive! Whole Food Energizer Men's Mulit Max PotencyNature's Way · off the market100 mg
- Alive! Whole Food Energizer Men's Multi Max PotencyNature's Way · off the market100 mg
- Alive! Whole Food Energizer Multi-VitaminNature's Way · off the market125 mg
- Alive! Whole Food Energizer Multi-Vitamin Max PotencyNature's Way · off the market125 mg
- Alive! Whole Food Energizer Multivitamin Max PotencyNature's Way · off the market125 mg