Kelp supplements
Our pick
Now Foods, Kelp Powder, 8 OZ
Herbs Pro
90 mg per serving
$8.50
Most kelp per dollar of the 13 products here
Kelp Powder from Now Foods is a natural source of vitamins, minerals, and trace elements. Rich in io…
View at Herbs Pro →
Comparison
- 13 products contain kelp
- 0 of those contain kelp and nothing else
- Kelp is widely stocked — carried by 3 merchants
Serving size across these products log scale
90 mgtypical
90 mgour pick
20 mg
200 mg
Lowest priced
Bottle price only. Container sizes vary and servings per container are not stated consistently, so this is a starting point rather than a like-for-like comparison.
$8.50
90 mg per serving
$10.40
90 mg per serving
$10.61
100 mg per serving
$10.61
100 mg per serving
Most kelp per serving
Ranked by the amount stated on the label. mg is the unit most brands use for kelp, and only products measured that way are ranked here — every product here uses it. Serving sizes differ between brands, so check the label for how many capsules or tablets that is.
200 mg
$31.99
Thyroid Health • Organically Grown U.S. Sea Kelp • Gluten Free • Non GMO Project Verified • Dietary…
132 mg
$14.36
Covers the most in one bottle
These contain kelp plus the most other ingredients we found — fewer bottles if the rest of your stack overlaps.
28 ingredients
$36.89
27 ingredients
$54.97
Est. 1982 • Formulated For Absorption • Made with Organic Vegetables & Herbs • Certified Organic by…
27 ingredients
$31.97
Usually combined with
What actually shares a bottle with kelp, counted across these 13 products.
Iodine · 7Calcium · 4Magnesium · 4Alfalfa · 3Chromium · 3Zinc · 3Vitamin D3 (Cholecalciferol) · 3Copper · 3
Build a stack with kelp
Add the other ingredients you want and find the fewest bottles that cover them.
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