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

• SuperFlex-LNewtonEverett20 mg
• SuperFocusAOR Advanced Orthomolecular Research Advanced15 mg
• Superfood Alpha BlendOptimal Alpha · off the market0.46 mg
• Superfood Alpha Blend Citrus OrangeOptimal Alpha0.46 mg
• Superfood Alpha Blend Mixed BerryOptimal Alpha13 mg
• Superfood Amazon ChocolateGreens+ Organics0.282 mg
• Superfood Beets RaspberryFeel Great Vitamin Co.0.3 mg
• Superfood Greens Cacao ChocolateFeel Great Vitamin Co.0.3 mg
• Superfood Greens Lemon Ginger FlavoredLadder16 mg
• Superfood Greens Very BerryFeel Great Vitamin Co.0.3 mg
• Superfood MultivitaminAPSU · off the market4 mg
• SuperFood PlusDr. Schulze's40 mg
• Superfood Protein Cacao ChocolateFeel Great Vitamin Co.1.2 mg
• Superfood RawGreens+ Organics0.5 mg
• Superfood Raw Energy Natural UnflavoredFREZZOR0.9 mg
• Superfood Wild BerryGreens+ Organics0.567 mg
• Superfoods for Kids Plant-Based Protein Coco LocoFeel Great Vitamin Co.0.6 mg
• Superfoods Greens GummiesGruns16 mg
• Superfoods Multi-VitaminsCATALO16 mg
• Superfruit Liquid Multi Acai FlavorNOW25 mg
• Supergreen Tonik BerryHuman Tonik20 mg
• Supergreens GummiesGoli Nutrition1.61 mg
• SuperHairMoon Juice5 mg
• Superhuman BurnAlpha Lion37.5 mg
• SuperHuman Extreme GrapezillaAlpha Lion12.5 mg
• Superhuman Protein Anabolic Cereal Rainbow Cereal FlavorAlpha Lion4 mg
• SuperHuman Pump Hulk Juice Sour Gummy BearAlpha Lion6.25 mg
• SuperHuman Supreme Cherry Popper Sweet Black CherryAlpha Lion12.5 mg
• Superior Adult Chewable Raspberry Rapture Multi-Vitamins & MineralsNature's Harmony10 mg
• Superior Children's Multi Mixed Fruit FlavorBodSmith · off the market10 mg
• Superior One-Per-Day Multi-Vitamins & Minerals Iron Free FormulaNature's Harmony25 mg
• Superior One-Per-Day Multi-Vitamins & Minerals With IronNature's Harmony25 mg
• Superior Strength Hair, Skin & Nails with 5,000 mcg BiotinNature's Truth · off the market25 mg
• SuperNutesOrtho Molecular Products · off the market10 mg
• SuperNutes Chewable MultivitaminOrtho Molecular Products · off the market10 mg
• Superplex-TMajor100 mg
• SuperPump 250 Blue RaspberryGaspari Nutrition30 mg
• SuperPump 250 Boardwalk Cotton CandyGaspari Nutrition30 mg
• SuperPump 250 Country Life Pink LemonadeGaspari Nutrition30 mg
• SuperPump 250 Rainbow Italian IceGaspari Nutrition30 mg
• SuperPump 250 Strawberry KiwiGaspari Nutrition30 mg
• SuperPump Blue Raspberry IceGaspari Nutrition · off the market80 mg
• SuperPump MAX Black CherryGaspari Nutrition79 mg
• SuperPump MAX Blue RaspberryGaspari Nutrition79 mg
• SuperPump MAX Fruit PunchGaspari Nutrition79 mg
• SuperPump Max Fruit Punch BlastGaspari Nutrition80 mg
• SuperPump MAX Grape CoolerGaspari Nutrition79 mg
• SuperPump MAX Orange CoolerGaspari Nutrition79 mg
• SuperPump MAX Pink LemonadeGaspari Nutrition79 mg
• SuperPump Max Raspberry LemonadeGaspari Nutrition80 mg

Where next?

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