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 137 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Mr Hyde Zero Fruit PunchProSupps25 mg
- Mr Hyde Zero Fruit PunchPS ProSupps25 mg
- Mr. Hyde Signature Blue RazzProSupps14 mg
- MRP Active ChocolateNutracore Nutrition · off the marketin a blend
- MRP Active Milk And CookiesNutracore Nutrition · off the marketin a blend
- MRP Active VanillaNutracore Nutrition · off the marketin a blend
- MRP All Natural Meal-Replacement Shake ChocolatePure Advantage · off the market38 mg
- MRP All Natural Meal-Replacement Shake VanillaPure Advantage · off the market38 mg
- MRP Apple Crumb CakeCore Nutritionals5 mg
- MRP Banana CreamCore Nutritionals5 mg
- MRP Blueberry Crumb CakeCore Nutritionals5.6 mg
- MRP Carrot CakeCore Nutritionals5.6 mg
- MRP ChocolatePure Advantage38 mg
- MRP Chocolate Caramel Candy BarCore Nutritionals5.6 mg
- MRP Chocolate MilkshakeNutraBio10 mg
- MRP Cinnamon and Brown SugarCore Nutritionals5.6 mg
- MRP Classic VanillaCore Nutritionals5 mg
- MRP Creamy VanillaNutraBio10 mg
- MRP Double Chocolate Oatmeal CookieCore Nutritionals5.6 mg
- MRP Peanut Butter Oatmeal CookieCore Nutritionals5.6 mg
- MRP Pumpkin PieCore Nutritionals5.6 mg
- MRP Rich ChocolateCore Nutritionals5 mg
- MRP S'MoresCore Nutritionals5.6 mg
- MRP SnickerdoodleCore Nutritionals5 mg
- MRP VanillaPure Advantage38 mg
- MRP Vanilla PoundcakeCore Nutritionals5.6 mg
- MSMNature's Gifts · off the market25 mg
- MSM Lite Citrus Flavored Fizzy Drink MixEmergen-C10 mg
- MSM+ 750 mgNature's Gifts · off the market25 mg
- MulgatolSanofi-Aventis9 mg
- Mulltivitamin Women 50+Well At Walgreens14 mg
- MultiAyush Herbs66 mg
- MultiVivioptal25 mg
- MultiGevitta · off the market10 mg
- MultiSwanson · off the market60 mg
- MultiNatures Plus BrainCeutix · off the market20 mg
- MultiMyBite Vitamins10 mg
- MultiBlackstone Labs50 mg
- MultiGoli Bites8 mg
- MultiNature Made20 mg
- MultiAmvilab10 mg
- MultiCore Nutritionals50 mg
- Multiyoutheory30 mg
- MULTI (hers)Millecor30 mg
- MULTI (his)Millecor30 mg
- Multi +Garden of Life Dr. Formulated16 mg
- Multi + AntioxidantsFemMed20 mg
- Multi + AshwaghandaNature Made20 mg
- Multi + ElderberryNature Made20 mg
- Multi + Energy Gummy Vitamins Raspberry + Black Tea Flavorvitafusion11.2 mg