LAFYA Wellness+
Ingredient library

Vitamin

Niacin

Niacin is found naturally in many foods and is added to some foods. NIH publishes reference intake amounts for Niacin by life stage, listed in the table below. Read 2026-08-09.

What is Niacin?

NIH's fact sheet for Niacin carries no line we quote here under this heading.

How much Niacin does NIH publish?

National Institutes of Health, Office of Dietary Supplements. Niacin — Consumer. Read 2026-08-16.
Life stageAmountPrinted table
Birth to 6 months2 mgRecommended Amount
Breastfeeding teens and women17 mg NERecommended Amount
Children 1–3 years6 mg NERecommended Amount
Children 4–8 years8 mg NERecommended Amount
Children 9–13 years12 mg NERecommended Amount
Infants 7–12 months4 mg NERecommended Amount
Pregnant teens and women18 mg NERecommended Amount
Teen boys 14–18 years16 mg NERecommended Amount
Teen girls 14–18 years14 mg NERecommended Amount
Birth to 12 monthsNot establishedUpper Limit
Children 1–3 years10 mgUpper Limit
Children 4–8 years15 mgUpper Limit
Children 9–13 years20 mgUpper Limit
Teens 14–18 years30 mgUpper Limit

Children and teens

Rows for children and teens appear in the table above, in NIH's own wording.

Pregnancy and breastfeeding

Rows for pregnant and breastfeeding life stages appear in the table above, in NIH's own wording.

What upper limit does NIH publish for Niacin?

  • Birth to 12 months: Not established
  • Children 1–3 years: 10 mg
  • Children 4–8 years: 15 mg
  • Children 9–13 years: 20 mg
  • Teens 14–18 years: 30 mg

Which foods contain Niacin?

"Niacin is found naturally in many foods and is added to some foods."

Where these numbers come from

Every quote and every amount on this page comes from National Institutes of Health, Office of Dietary Supplements. Niacin — Consumer. Public domain (U.S. Government work). LAFYA read the sheet 2026-08-09.

Read the full fact sheet at NIH Office of Dietary Supplements

What LAFYA does not say about Niacin

LAFYA publishes no claim that niacin does anything in the body, because we cannot prove one.

Quotes are word-for-word from National Institutes of Health, Office of Dietary Supplements. Public domain (U.S. Government work). LAFYA does not interpret, summarise, or add to them.

NIH source read 2026-08-09.