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Supplements: K

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1,674 supplements starting with "K"

Showing 151–200 of 1,674

Product Ingredients
Kelp (Iodine Source) 225 mcg Off-market 10
Kelp (Iodine) 150 mcg 7
Kelp - Lecithin - B-6 Cider Vinegar 8
Kelp 150 mcg Of Natural Iodine Off-market 5
Kelp Alcohol Free 3
Kelp Certified 660 mg Off-market 5
Kelp Combination #1 Off-market 6
Kelp Extract Powder 500 mg 1
Kelp Extract Powder 500 mg 1
Kelp Extract Powder 500 mg 1
Kelp Non-Alcohol 3
Kelp Seaweed Powder 16
Kelp Vinegar Lecithin B6 10
Kelp Whole Thallus 600 mg 4
Kelp Whole Thallus 600 mg 4
Kelp Whole Thallus 600 mg 4
Kelp Whole Thallus 600 mg 3
Kelp Whole Thallus 600 mg 3
Kelp With Iodine 6
Kelp With Iodine Off-market 6
Kelp With Iodine 5
Kelp With Iodine 5
Kelp with Iodine 5
Kelp with Natural Selenium and Iodine 7
Kencur Alcohol Free 3
Kenzen Vital Balance Meal Replacement Mix Natural Vanilla Flavor 78
Keratin 50 mg Off-market 4
Keratin 50 mg 5
Keratin 500 mg 3
Keratin Booster for Men 20
Keratin Enhance With Biotin And Resveratrol 500 MG KERATIN 7
Keratin Enrich 11
Keratin for Hair 12
Keratin Hair & Nails with Biotin 10
Keratin Hair Booster Off-market 15
Keratin Hair Booster 15
Keratin Hair Booster 15
Keratin Hair Booster Gummies Strawberry Flavored 14
Keratin Hair Enhance 15
Keratin Hair Volumizer Off-market 14
Keratin Hair Volumizer Off-market 15
Keto & Fasting Electrolytes Advanced Formula 10
Keto + ACV Gummies Off-market 20
Keto + ACV Gummies 1000 mg Off-market 20
Keto + ACV Gummies 1000 mg Off-market 20
Keto + ACV Gummies 1000 mg Off-market 20
Keto + ACV Gummies 1000 mg Off-market 20
Keto + ACV Gummies 1000 mg Off-market 20
Keto + ACV Gummies 1000mg Off-market 20
Keto + ACV Gummies 1000mg Off-market 20

Letter "K" cohort across the 26-letter alphabet

Counts of products per letter. Letter "K" sits within 1674 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 1,674 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.

Related

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