PlainVitamins

Niacin 500 mg

by Natural Factors · tablet or pill · 60 tablets

  • On the market (NIH)
  • UPC 0 68958 01225 4
  • DSLD label 74857
  • Serving 1 tablet

Niacin 500 mg by Natural Factors lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 500 mg of niacin and 69 mg of calcium. Its current label entered the NIH Dietary Supplement Label Database on June 23, 2017.

What is in Niacin 500 mg?

Each row as the label prints it, per serving of 1 tablet. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Niacin 500 mg: Supplement Facts rows against the market (DSLD label 74857, January 2026 release)
IngredientAmount% DVAmong products listing it
Niacinas Nicotinic Acid500 mg2,500%Niacin in Niacin 500 mg against 12,413 products500 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg500 mg

Higher than 98% of 12,413 products listing niacin (median 20 mg). Per day at the most servings: 1,500 mg. 42.9 times the adult UL a day.

Calciumas Dicalcium Phosphate69 mg7%Calcium in Niacin 500 mg against 17,831 products69 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg69 mg

66% of 17,831 products listing calcium give more (median 115 mg). Per day at the most servings: 207 mg.

Source: NIH ODS Dietary Supplement Label Database, label 74857 (entered June 23, 2017), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • At 3 servings a day, the most its directions give, the label lists 1,500 mg of niacin, 42.9 times the adult Tolerable Upper Intake Level.

The NIH database records 1 to 3 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

6 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Suggested Usage: 1 tablet 1 to 3 times per day or as directed by a health professional. Start with 1 tablet before bedtime with a low-fat snack. Additional tablets may be taken with lunch and/or dinner.
Warnings
Cautions: As with any supplement, consult your health professional before use if you are pregnant, breastfeeding, or trying to conceive, or if you are taking medication, have a medical condition, or anticipate a surgery.
Keep out of the reach of children.
Sealed for your protection. Do not use if seal is broken.
Allergens and what it does not contain
Non-GMO
Contains no artificial colors, preservatives, or sweeteners; no dairy, starch, sugar, wheat, gluten, yeast, soy, corn, egg, fish, shellfish, no animal products, salt, tree nuts, or GMOs.
Storage
For freshness, store in a cool, dry place.

Source: label statements in DSLD label 74857.

What else is on the label?

Other ingredients: Carbohydrate Gum, Microcrystalline Cellulose, Magnesium Stearate, Silica.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Purity & potency guaranteed.

How many labels does Niacin 500 mg have?

2 labels are on file under this name since October 10, 2014: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 74857 (current) Entered June 23, 2017 · on the market · 60 tablets · UPC 0 68958 01225 4
  2. Label 37888 Entered October 10, 2014 · off the market May 6, 2017 · 60 tablets · UPC 0 68958 01225 4

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Natural Factors Canada (manufacturer). All Natural Factors products.

Where next?