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Vitamin · Supplement ingredient

Thiamine (Vitamin B1)

Thiamine (Vitamin B1) is listed on 1 U.S. supplement product label in the NIH DSLD, #4,554 of 4,614 by label frequency.

1
Products
#4,554 of 4,614
By frequency
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How common is Thiamine (Vitamin B1)?

Number of supplement labels listing Thiamine (Vitamin B1) vs nearby vitamin ingredients

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

Products containing Thiamine (Vitamin B1)

No products found containing this ingredient.

Nearby Ingredients in Vitamin

Other ingredients in the Vitamin category cataloged in the NIH DSLD. Useful for comparing how common different nutrients are across the US supplement market.

Compare Thiamine (Vitamin B1) vs Vitamin C →

Frequently asked about Thiamine (Vitamin B1)

How many supplement products contain Thiamine (Vitamin B1)?
1 supplement product label in the NIH DSLD currently lists Thiamine (Vitamin B1) as an ingredient. By label frequency it ranks #4,554 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.