Protein · Supplement ingredient
Protein
Protein is listed on 2,949 U.S. supplement product labels in the NIH DSLD, #85 of 4,614 by label frequency.
- 2,949
- Products
- #85 of 4,614
- By frequency
How common is Protein?
Number of supplement labels listing Protein vs nearby protein ingredients
- Gelatin
Gelatin
24,347 products
- Protein (unspecified) 6,961
Protein (unspecified)
6,961 products
- Whey Protein 3,133
Whey Protein
3,133 products
- Protein 2,949
Protein
2,949 products
- Collagen 1,062
Collagen
1,062 products
- Rice Protein 681
Rice Protein
681 products
Products containing Protein
Nearby Ingredients in Protein
Other ingredients in the Protein category cataloged in the NIH DSLD. Useful for comparing how common different nutrients are across the US supplement market.
Nationwide ingredients with similar DSLD presence
Two peer sets for Protein: closest on total DSLD label listings (2,949 here) and closest on distinct brands that list it (532 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.
Similar brand breadth
Nearest other ingredients by distinct brands listing them (floored at ≥100 brands), distinct from the label-frequency row.
Frequently asked about Protein
How many supplement products contain Protein? ▼
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.
Read our methodology , how this data is sourced, computed, and verified.
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.