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 89 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Golden Supreme Mega Vitamin/MineralJeunique · off the market90 mg
- Golden YearsNatures Plus · off the market50 mg
- GolferAid Sports Performance Island CitrusGOLFERAID35 mg
- Goliath Multi VitaminGoliath Labs120 mg
- Gorilla Mind Energy Drink Arctic WhiteGorilla Mind16 mg
- Gorilla Mind SmoothGorilla Mind16 mg
- Gorilla Mode Cherry BlackoutGorilla Mind16 mg
- Gorilla Mode Lightning Blue RaspberryGorilla Mind32 mg
- Gorilla Mode Nitric Volcano BurstGorilla Mind32 mg
- Gorilla Mode Pre-Workout Formula Jungle JuiceGorilla Mind16 mg
- Gorilla Mode Tequila SunriseGorilla Mind16 mg
- Gourmet Pro Chocolate CaramelMM Sports Nutrition5 mg
- Gourmet Pro Chocolate Fudge BrownieMM Sports Nutrition5 mg
- Gourmet Pro Vanilla Caramel SwirlMM Sports Nutrition5 mg
- Gourmet VanillaDymatize Nutrition · off the market15 mg
- Grass-Fed, Certified rBGH-Free Whey Protein Powder ChocolateSwanson Ultra · off the market2 mg
- Grass-Fed, Certified rBGH-Free Whey Protein Powder StrawberrySwanson Ultra · off the market2 mg
- Grass-Fed, Certified rBGH-Free Whey Protein Powder VanillaSwanson Ultra · off the market2 mg
- Great HairVitabase30 mg
- Green and RedNatures Plus Source of Life · off the market40 mg
- Green and RedNaturesPlus Source of Life40 mg
- Green and Red Mini-TabsNature's Plus Source of Life · off the market40 mg
- Green Clean Herbal Cleanse Honey Tea FlavorDetoxify5 mg
- Green Cobra 74000We Care Distributor · off the market25 mg
- Green Monster Cherry ColaPrecision Engineered Bio-Logical50 mg
- Green Monster Lemon Berry Iced TeaPrecision Engineered Bio-Logical50 mg
- Green PowerGreens Today17 mg
- Green Power FormulaGreens Today · off the market17 mg
- Green SourceRadiance25 mg
- Green SourceGood 'N Natural · off the market25 mg
- Green SourceWonder Laboratories25 mg
- Green SourceDC25 mg
- Green SourcePuritan's Pride25 mg
- Green Source Iron FreePuritan's Pride25 mg
- Green Source Multi Vitamins & MineralsVitamin World25 mg
- Green Source Multivitamin & MineralsVitamin World25 mg
- Green Super Food Bursting Ripe BerryLEAN Nutraceuticals0.5 mg
- Green SuperfoodAmazing Grass · off the market0.5 mg
- Green SuperFood All Natural Drink PowderAmazing Grass · off the market0.5 mg
- Green SuperFood Antioxidant Berry Drink PowderAmazing Grass · off the market0.5 mg
- Green SuperFood Berry Flavor Drink PowderAmazing Grass · off the market0.5 mg
- Green SuperFood ChocolateAmazing Grass0.3 mg
- Green SuperFood Chocolate Drink PowderAmazing Grass · off the market0.3 mg
- Green SuperFood Lemon Lime Energy Drink PowderAmazing Grass · off the market0.5 mg
- Green Superfood Multivitamin Pineapple LemongrassAmazing Grass10 mg
- Green Superfood Orange DreamsicleAmazing Grass0.5 mg
- Green SuperFood Orange Dreamsicle Drink PowderAmazing Grass · off the market0.5 mg
- Green SuperFood Pineapple Lemongrass FlavorAmazing Grass · off the market10 mg
- Green Superfood Powder Sweet GreensNutrilite Organics8 mg
- Green Supreme Berry Flavored Powder With Goji & AcaiTru Body Wellness · off the market0.5 mg