Niacin · unit conversion
Pick the chemical form the label names, then the direction. Nothing is converted until a form is chosen, because the same number of IU is a different mass for each form.
Result
Choose a form first. IU is not a mass, so without the form there is no factor that can be said to apply.
The factors on this page
| Form | From | To | Factor | Source | Year |
|---|---|---|---|---|---|
| Niacinamide / nicotinamide (niacin) | mg | mg NE | 1 | FDA Guidance for Industry: Converting Units of Measure for Folate, Niacin, and Vitamins A, D, and E on the Nutrition and Supplement Facts Labels | 2019 |
| Nicotinic acid (niacin) | mg | mg NE | 1 | FDA Guidance for Industry: Converting Units of Measure for Folate, Niacin, and Vitamins A, D, and E on the Nutrition and Supplement Facts Labels | 2019 |
As published
1 mg NE = 1 mg niacin = 60 mg tryptophan (see § 101.9(c)(8)(iv) (footnote 5)). The term niacin refers to nicotinamide (nicotinic acid amide-NAD), nicotinic acid (pyridine-3-carboxylic acid), and derivatives that exhibit the biological activity of nicotinamide.
FDA Guidance for Industry: Converting Units of Measure for Folate, Niacin, and Vitamins A, D, and E on the Nutrition and Supplement Facts Labels
1 mg NE = 1 mg niacin = 60 mg tryptophan (see § 101.9(c)(8)(iv) (footnote 5)). The term niacin refers to nicotinamide (nicotinic acid amide-NAD), nicotinic acid (pyridine-3-carboxylic acid), and derivatives that exhibit the biological activity of nicotinamide.
FDA Guidance for Industry: Converting Units of Measure for Folate, Niacin, and Vitamins A, D, and E on the Nutrition and Supplement Facts Labels