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.

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).

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.

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.

In which products and brands?

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 45 of 256), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Century WomenGoodSense14 mg
• Century Women's Complete 50+TopCare Health14 mg
• Ceralin ForteMetagenics250 mg
• Cerebral SuccessBonus International · off the market10 mg
• Cerebrate4 Organics5 mg
• CerenityOrtho Molecular Products10 mg
• Cerenity PMOrtho Molecular Products10 mg
• CereViveOrtho Molecular Products10 mg
• CereVive Jr. BerrySpringboard5 mg
• CeroviteRugby20 mg
• Cerovite Jr.Rugby20 mg
• Cerovite LiquidRugby20 mg
• Cerovite SeniorRugby20 mg
• CertaVite SeniorMajor20 mg
• CertaVite with AntioxidantsMajor20 mg
• Certified Men's MultivitaminRainbow Light · off the market30 mg
• Certified Women's MultivitaminRainbow Light · off the market30 mg
• ChainsawVigor Labs20 mg
• Chainsaw GoldVigor Labs12 mg
• Champion BlendIsotonix · off the market60 mg
• Chelated Chromium4 Today · off the market0.35 mg
• Cherifer PGM 10-22 for TeenagersHeight Is Might · off the market24 mg
• Cherifer Syrup With Taurine & CGFHeight Is Might · off the market18 mg
• Chew-A-VitDC13.5 mg
• Chewable 50+ Men Multivitamin + Supporting Herbs Wild BerrySuper Nutrition SimplyOne · off the market15 mg
• Chewable 50+ Women Multivitamin + Supporting Herbs Wild BerrySuper Nutrition SimplyOne15 mg
• Chewable Adult MultiCountry Life · off the market10 mg
• Chewable Adult Multi Pineapple-Orange FlavorCountry Life10 mg
• Chewable Advanced Multi EA Mixed FruitBariatric Advantage Innovations10 mg
• Chewable Advanced Multi EA StarwberryBariatric Advantage Innovations20 mg
• Chewable Advanced Multi EA StrawberryBariatric Advantage Innovations10 mg
• Chewable Advanced Multi EA without Iron Mixed FruitBariatric Advantage Innovations20 mg
• Chewable Children's Multivitamins with Vitamin CEqualine13.5 mg
• Chewable Essential Multi without Iron BerryBariatric Advantage50 mg
• Chewable Essential Multi without Iron OrangeBariatric Advantage25 mg
• Chewable Heart-Shaped Love BitesNature's Plus · off the market10 mg
• Chewable High ADEK with Iron Tropical FruitBariatric Advantage20 mg
• Chewable Kiddievite Natural Bubblegum FlavorKiddieMax3 mg
• Chewable Kids Might Multi Tasty Fruit FlavorHealth Products Distributors · off the market12 mg
• Chewable Kids Mighty-Multi Tasty Fruit Flavor!Health Products Distributors, Inc.12 mg
• Chewable Kids Mighty-Multi! Fruit FlavorHealth Products Distributors · off the market12 mg
• Chewable Kids Multi Cherry Flavored365 Everyday Value · off the market20 mg
• Chewable Kids' MultiIVL Institute For Vibrant Living20 mg
• Chewable Kids' MultiCHK Nutrition20 mg
• Chewable Little Animals MultivitaminsMason Natural13.5 mg
• Chewable Little Animals Multivitamins Fruity FlavorsMason Natural13.5 mg
• Chewable Mega Teen Berry FlavorGNC Teens · off the market20 mg
• Chewable Men Multivitamin + Supporting Herbs Natural Wild BerrySuper Nutrition SimplyOne · off the market15 mg
• Chewable Multi RP Mixed FruitBariatric Advantage20 mg
• Chewable Multi Vitamin With Minerals Tropical Fruit FlavorTreehouse8 mg

Where next?

• Check an amount of niacin
• Labels above the upper limit
• All ingredients