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Supplements: K

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1,177 supplements starting with "K"

Download the catalog statistics extract cited on this page: dsld-catalog-statistics.csv (CC0).

Showing 1–50 of 1,177

Sort by: Name Newest Brand
Product Ingredients
K & D Plus A 8
K 100 mcg 5
K Alkaline Off-market 4
K Alkaline + Mg Off-market 6
K Alkaline + Mg Powder 3
K Alkaline +Mg Off-market 6
K Complete Off-market 6
K D Optimal 8
K Kidney 4
K Natural Off-market 9
K Potassium 99 mg 4
K Pure 12
K&D Plus A Off-market 8
K+2 Potassium 3
K-1 500 mcg Off-market 5
K-2 100 mcg Off-market 9
K-2 100 mcg MK7 D3 125 mcg (5,000 IU) 5
K-2 300 mcg MK7 5
K-2 50 mcg 9
K-2 500 mcg MK-4 4
K-2 MK-7 Bone Support Raspberry Off-market 11
K-2 MK-7 Raspberry 12
K-99 2
K-Alkaline Off-market 4
K-B Formula 9
K-B Tea 12
K-Bicarb 2
K-Force 8
K-Force Max 8
K-Mag Aspartate 9
K-MAG-60 4
K-MG 9
K-Mg Citrate Off-market 7
K-Otic 12
K/D Liquid 5
K/Mg Aspartate 6
K1 Keto Life 8
K1 Keto Life ACV Gummies 24
K1 Keto Life Gummies 21
K1 Keto Life Keto Max 10
K1 Keto Life Super Fruit Gummies Max 37
K2 + D3 4
K2 + D3 Off-market 4
K2 + D3 6
K2 + D3 5
K2 + D3 6
K2 + D3 15
K2 + D3 50 mcg Off-market 8
K2 + D3 Calcium Gummies Off-market 20
K2 + D3 Gold Off-market 5

Letter "K" cohort across the 26-letter alphabet

Counts of products per letter. Letter "K" sits within 1177 entries.

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

Top 10 letters by total product count

Letters with the most product entries, selecting a letter narrows the directory.

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

Bottom 10 letters by total product count

Less-populated letters, useful for spotting niche-named brands.

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

Why an alphabetical letter index?

The alphabetical browse exists because most casual searches start from a known product or brand name. If you remember the bottle in your cabinet starts with "K", this is the fastest way to scan all matching products in the NIH Dietary Supplement Label Database (DSLD). The full directory contains 1,177 products under "K", sortable by name, newest entry, or brand. For comparing products within a category (vitamin D, fish oil, multivitamins), use the type-filtered listing instead. For brand-level analysis, jump to the brands directory.

Per-product detail pages show the declared ingredient list, serving size, market status, and Daily Value (DV) percentages, when those values were submitted to the NIH on the original label filing. Many DSLD records include only structural ingredient lists without the per-row Supplement Facts panel; in those cases the detail page renders "Not disclosed on label" rather than a fabricated estimate. Editorial commentary and ingredient context is compiled by our editorial process. Inclusion in the directory is a label record, not an FDA endorsement, quality verification, or clinical efficacy claim. Always verify amounts on the physical label and consult a healthcare provider before starting any supplement, particularly if pregnant, nursing, taking prescription medication, or managing a medical condition.

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Data sourced from the NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD). See our methodology for details.

Every figure on PlainVitamins is rendered directly from the NIH Dietary Supplement Label Database (DSLD), no number is typed in by an editor. This page draws directly on 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.