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Supplements: K

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1,180 supplements starting with "K"

Showing 1–50 of 1,180

Product Ingredients
K Alkaline + Mg Off-market 6
K Alkaline + Mg Powder 3
K Alkaline +Mg Off-market 6
K Potassium 99 mg 4
K+2 Potassium 3
K-2 100 mcg MK7 D3 125 mcg (5,000 IU) 5
K-2 300 mcg MK7 5
K-2 500 mcg MK-4 4
K-2 MK-7 Bone Support Raspberry Off-market 11
K-2 MK-7 Raspberry 12
K-Mag Aspartate 9
K/Mg Aspartate 6
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 50 mcg Off-market 8
K2 + D3 Calcium Gummies Off-market 20
K2 + D3 with BioPerine Off-market 5
K2 + D3 with Calcium 5
K2 100 mcg + D3 125 mcg (5000 IU) Off-market 4
K2 100 mcg Apple Berry Fusion Off-market 10
K2 120 mcg + D3 2,000 IU Gold Off-market 6
K2 120 mcg + D3 5,000 IU 5
K2 MK-4 500 mcg 4
K2 MK-7 100 mcg 7
K2 MK-7 180 mcg & D3 5000 IU Off-market 5
K2+D3 5,000 IU (125 mcg) 5
K2+D3 Capsules 5
K2+D3 Vitamin 5
Kadsura Vine Alcohol Free 3
Kaishore Guggul 10
Kaishore Guggul 12
Kaishore Guggulu Off-market 15
Kaishore Guggulu Powder 12
Kale Alcohol Free 3
Kalenite Cleansing Herbs 13
Kalium Iodine 10
KalmAssure Magnesium Capsules Off-market 5
KalmAssure Magnesium Capsules 400 mg Off-market 5
KalmAssure Magnesium Capsules 420 mg 5
KalmAssure Magnesium Powder 400 mg Refreshing Natural Orange Flavor Off-market 11
KalmAssure Magnesium Powder 400 mg Refreshing Pink Lemonade Flavor Off-market 10
KalmAssure Magnesium Powder 400 mg Unflavored 5
KalmAssure Magnesium Powder 420 mg Refreshing Orange 11
KalmAssure Magnesium Powder 420 mg Refreshing Pink Lemonade 11
KalmAssure Magnesium Powder Refreshing Orange Off-market 10
Kalmegh Powder 1
Kalmerite Glycerite 13
Kanchanar Guggulu 16

Letter "K" cohort across the 26-letter alphabet

Counts of products per letter. Letter "K" sits within 1180 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 1,180 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 team. 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.

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.