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

• Up Your Mass StrawberryMHP Maximum Human Performance12 mg
• Up Your Mass VanillaMHP Maximum Human Performancein a blend
• Up-Lift Tart CherryBeverly International50,000 mg as transcribed, likely a slip
• UpliftOL Olympian Labs60 mg
• Uplift Cherry LimeadeNLA for Her12 mg
• UpLift ProVera's Formulations5 mg
• Urgent Cell RepairPhytAge Labs20 mg
• Urgent EnergyProCaps Labs · off the market10 mg
• Urgent EnergyProCaps Laboratories5 mg
• UrthGreensVivid Health Nutrition25 mg
• UsanimalsUSANA10 mg
• UVO Orange Peach FlavorUVO · off the market20 mg
• UZO Supreme Artificial French Vanilla FlavorOmniLife6 mg
• V-Power PlusNutrients for Health5 mg
• V.M.T. Extra StrengthViva Vitamins70 mg
• V.M.T. Regular StrengthViva Vitamins35 mg
• V16 OrangeAdvoCare20 mg
• V3 Kiwi StrawberryVasayo MicroLife Nutritionals · off the market20 mg
• Valer AminoDaVinci Laboratories of Vermont · off the market225 mg
• Valer AminoDaVinci Laboratories225 mg
• Vana-ChromeNutri-West26 mg as transcribed, likely a slip
• Vanadyl PlusOL Olympian Labs · off the market20 mg
• Vanadyl Plus with Chromium PicolinateOL Olympian Labs20 mg
• Vanadyl SulfateOL Olympian Labs · off the market20 mg
• Vanadyl Sulfate 20 mgOL Olympian Labs20 mg
• Vanadyl Sulfate-20OL Olympian Labs Performance Sports Nutrition · off the market20 mg
• Vanadyl Sulfate-20OL Olympian Labs20 mg
• VanillaON Optimum Nutrition100.6 mg
• Vanilla CaramelRightWay Nutrition · off the market10 mg
• Vanilla Cleanse ShakeCleanin a blend
• Vanilla CustardON Optimum Nutritionin a blend
• Vanilla Mushroom Apaptogenic ProteinMoon Juice0.2 mg
• Vanilla Protein Shake MixArbonne Essentials · off the market3 mg
• Vanilla ShakeUniversal19 mg
• Vanilla ThrillaSwee2ooth · off the market2 mg
• VanishPS ProSupps25 mg
• VaporX5 Neuro Blueberry LemonadeMuscleTech Performance Series30 mg
• VaporX5 Neuro Peach MangoMuscleTech Performance Series15 mg
• VaporX5 Next Gen Blue Raspberry FusionMuscleTech Performance Series30 mg
• VaporX5 Next Gen Candy WatermelonMuscleTech Performance Series15 mg
• VaporX5 Next Gen Fruit Punch BlastMuscleTech Performance Series30 mg
• VaporX5 Next Gen Icy Rocket FreezeMuscleTech Performance Series30 mg
• VaporX5 Next Gen Orange Mango PineappleMuscleTech Performance Series15 mg
• VaporX5 Next Gen Raspberry LemonadeMuscleTech Performance Series30 mg
• VaporX5 Ripped Icy Rocket FreezeMuscleTech Performance Series15 mg
• VaporX5 Ripped Strawberry LimeadeMuscleTech Performance Series15 mg
• Vaso WORxSuperior Labs · off the market8.34 mg
• Vasogen UltraVMI Sports10 mg
• VasotropinGaspari Nutrition200 mg
• VazoprilPharmaxa Labs2.5 mg

Where next?

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