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Non-nutrient/non-botanical · Supplement ingredient

Indole-3-Carbinol (I3C)

Indole-3-Carbinol (I3C) is listed on 88 U.S. supplement product labels in the NIH DSLD, #835 of 4,614 by label frequency.

88
Products
#835 of 4,614
By frequency

How common is Indole-3-Carbinol (I3C)?

Number of supplement labels listing Indole-3-Carbinol (I3C) vs nearby non-nutrient/non-botanical ingredients

products
Source NIH Dietary Supplement Label Database (DSLD) As of 2026

Products containing Indole-3-Carbinol (I3C)

Nearby Ingredients in Non-nutrient/non-botanical

Other ingredients in the Non-nutrient/non-botanical category cataloged in the NIH DSLD. Useful for comparing how common different nutrients are across the US supplement market.

Compare Indole-3-Carbinol (I3C) vs Magnesium →

Nationwide ingredients with similar DSLD presence

Two peer sets for Indole-3-Carbinol (I3C): closest on total DSLD label listings (88 here) and closest on distinct brands that list it (53 here). Peers exclude the same DSLD category, and rows stay link-disjoint so each axis is a distinct neighborhood.

Similar label frequency

Nearest other ingredients by distinct DSLD product labels (floored at ≥50), outside this category.

Frequently asked about Indole-3-Carbinol (I3C)

How many supplement products contain Indole-3-Carbinol (I3C)?
88 supplement product labels in the NIH DSLD currently lists Indole-3-Carbinol (I3C) as an ingredient. By label frequency it ranks #835 of 4,614 among ingredients PlainVitamins ranks (same sort as /rankings/most-common-ingredients). Browse them below.

Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD). Regulatory reference: Source: Dietary Supplement Health and Education Act (DSHEA), 1994, 21 U.S.C. § 321(ff).

Disclaimer, Not Medical Advice: Information on this page is based on manufacturer-declared label data and is provided for educational and reference purposes only. It does not constitute medical, nutritional, or health advice. Consult a licensed healthcare provider before starting, stopping, or combining any supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.

Every figure on PlainVitamins is rendered directly from the NIH Dietary Supplement Label Database (DSLD), no number is typed in by an editor. Ingredient figures are computed directly from the NIH DSLD, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.