PlainVitamins

Physical form

Capsule supplements

44,316 products in the NIH Dietary Supplement Label Database are supplements in capsule form, 34,784 of them on the market; 16% of them are products of other compounds (neither nutrient nor plant), against 11% of all supplements; 61% list at least one botanical (an herb or plant) (DSLD version 9.4.0, January 2026).

Data: NIH ODS Dietary Supplement Label Database, version 9.4.0, current labels; Daily Values 21 CFR 101.9.

What kinds of ingredient do supplements in capsule form list?

The share of supplements in capsule form listing at least one ingredient of each kind (how kinds are counted):

Capsule: share listing each kind of ingredient

44,316 products; a product counts once per kind.

Capsule: share listing each kind of ingredientBotanicals61%Other compounds38%Vitamins27%Minerals25%Amino acids10%Enzymes7%Probiotic strains7%Fiber5%
Capsule: share listing each kind of ingredientBotanicals61%Other compounds38%Vitamins27%Minerals25%Amino acids10%Enzymes7%Probiotic strains7%Fiber5%
Capsule: share listing each kind of ingredientBotanicals61%Other compounds38%Vitamins27%Minerals25%Amino acids10%Enzymes7%Probiotic strains7%Fiber5%
Capsule: share listing each kind of ingredientBotanicals61%Other compounds38%Vitamins27%Minerals25%Amino acids10%Enzymes7%Probiotic strains7%Fiber5%
Capsule: share listing each kind of ingredientBotanicals61%Other compounds38%Vitamins27%Minerals25%Amino acids10%Enzymes7%Probiotic strains7%Fiber5%

Source: Supplement Facts rows of each product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0, by the ingredient category DSLD records.

What do supplements in capsule form contain?

Vitamin C is the single ingredient they list most (12% of them), then magnesium (10%) and vitamin B6 (10%). The table sets their median amount per serving against the median of every product listing the same ingredient.

Capsule: the ingredients most often listed (44,316 products, DSLD version 9.4.0)
IngredientShare listing itMedian hereAll products
Vitamin C12%120 mg100 mg
Magnesium10%100 mg86 mg
Vitamin B610%10 mg6 mg
Zinc10%15 mg11 mg
Calcium9%100 mg115 mg
Vitamin B128%100 mcg36 mcg
Vitamin D8%25 mcg15 mcg
Niacin8%25 mg20 mg
Folate7%400 mcg400 mcg
Vitamin E7%45 IU30 IU
Chromium6%120 mcg100 mcg
Pantothenic Acid (Vitamin B5)6%25 mg12 mg
Thiamin6%10 mg5 mg
Selenium6%70 mcg55 mcg
Riboflavin6%10 mg4 mg

Source: Supplement Facts rows of each product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0.

What kinds of products are they?

Capsule by DSLD product type

Capsule by product typeOther Combinations16,691Botanical12,384Non-Nutrient/Non-Botanical7,143Botanical with Nutrients2,679Vitamin1,601Mineral1,488Amino acid/Protein1,228Fat/Fatty Acid334
Capsule by product typeOther Combinations16,691Botanical12,384Non-Nutrient/Non-Botanical7,143Botanical with Nutrients2,679Vitamin1,601Mineral1,488Amino acid/Protein1,228Fat/Fatty Acid334
Capsule by product typeOther Combinations16,691Botanical12,384Non-Nutrient/Non-Botanical7,143Botanical with Nutrients2,679Vitamin1,601Mineral1,488Amino acid/Protein1,228Fat/Fatty Acid334
Capsule by product typeOther Combinations16,691Botanical12,384Non-Nutrient/Non-Botanical7,143Botanical with Nutrients2,679Vitamin1,601Mineral1,488Amino acid/Protein1,228Fat/Fatty Acid334
Capsule by product typeOther Combinations16,691Botanical12,384Non-Nutrient/Non-Botanical7,143Botanical with Nutrients2,679Vitamin1,601Mineral1,488Amino acid/Protein1,228Fat/Fatty Acid334

Brands with the most: TerraVita Premium Collection (1,356), Nature's Way (734), Douglas Laboratories (609), NOW (560), Swanson (534), Solaray (478), SuperSmart (414), Swanson Premium Brand (404), Pure Encapsulations (390), Life Extension (355).

Which products are they?

60 of the 44,316: on-market products first, the newest label first. Each ingredient page lists every product that contains it.

Source: NIH ODS Dietary Supplement Label Database version 9.4.0. How products are chosen: the physical form DSLD records for the label (Capsule).

Where next?