Single Vitamin and Mineral

Niacinamide 500 mg

by 21st Century · Tablet or Pill

Supplement facts from the label of Niacinamide 500 mg by 21st Century: Niacinamide 500 mg, Calcium 160 mg.

Label of Niacinamide 500 mg, 21st Century
Label image: NIH DSLD · full label (PDF)
Serving size1 Tablet(s)
Servings per container110
Most servings a day on the label1
TypeSingle Vitamin and Mineral
Barcode740985225509
Label recordDSLD 326336 · entered 2025-03-25

Supplement Facts

IngredientPer serving% DVUpper limit (adults)
Niacinamide500 mg3,125%35 mg · 1,429% at label max ⚠
Calcium (Calcium Carbonate)160 mg12%2,500 mg · 6% at label max

⚠ Above the upper limit: at the most servings a day printed on the label, at least one ingredient goes above the adult UL. Some ULs apply only to supplemental forms (shown on each ingredient page).

Upper limits: NIH ODS Fact Sheets for Health Professionals. Compared only where the unit converts and the limit applies to the form on the label.

On the label

For: Vegan · Vegetarian · Adult (18 - 50 Years) · Gluten Free · Dairy Free

Claim types: Nutrient · All Other · Structure/Function

Suggested/Recommended/Usage/Directions: Directions: As a vitamin supplement, adults take one (1) tablet daily with any meal or as directed by a healthcare provider.

Precautions re: All Other: Do not exceed recommended dosage. Individual results may vary. Stop use and contact a physician if adverse reactions occur. Do not use if product appears to be tampered with or seal is broken.

Precautions re: Pregnant or Nursing or Prescription Medications: Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.

Precautions re: Children: Keep out of reach of children.

Storage: Store at room temperature.

FDA Disclaimer Statement: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

This page repeats what the label says and the official upper limits for healthy adults. It is not medical advice: ask a doctor, pharmacist or registered dietitian about your own intake, especially if you are pregnant, take medicines or have a health condition.

Label data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).