PlainVitamins

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Seaweed supplements

Half of the 16 seaweed supplements in the NIH label database that print an amount list 185 mg or less per serving; the middle half list 50 mg to 262.5 mg (DSLD version 9.4.0, January 2026).

Products listing it
3916 print an amount; 23 list it inside a blend without an amount
Median per serving
185 mgmiddle half 50 mg to 262.5 mg

How much seaweed do supplements contain?

The median product lists 185 mg per serving. One in ten lists 27.5 mg or less, one in ten 1,000 mg or more. The amount printed most often is 250 mg (4 products).

Products by amount of seaweed per serving

16 products, log scale; extreme 0.2% at each end left out of the drawing.

Seaweed: products by amount per serving10 mg30 mg100 mg1,000 mg
Seaweed: products by amount per serving10 mg30 mg100 mg300 mg1,000 mg
Seaweed: products by amount per serving10 mg30 mg100 mg300 mg1,000 mg
Seaweed: products by amount per serving10 mg30 mg100 mg300 mg1,000 mg
Seaweed: products by amount per serving10 mg30 mg100 mg300 mg1,000 mg3,000 mg
The amounts printed most often
Amount per servingProductsFor example
250 mg4 Brown Seaweed Extract (Nature's Vision); Collagen Type II (LuckyVitamin); Seaweed Supreme (Maxi Health)
50 mg3 Marine Collagen & Hyaluronic Acid Complex (Swiss BioEnergetics)
1,000 mg2 Sea Calcium (Higher Nature)
6.25 mg1 One 'N' Only Men's Formula (Pure Essence Labs)
20 mg1 Longevity Women's Formula (Pure Essence Labs)
35 mg1 Phena-Lean T2 (Anabolic Warfare)
100 mg1 Maximum Vibrance Chocolate Chunk (Vibrant Health)
120 mg1
300 mg1 Liquid Coral Calcium Complex and Cofactors (California Academy of Health)
3,500 mg1

Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).

Which products list the most seaweed?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

In which products and brands?

Products listing seaweed by DSLD product type

Seaweed by product typeOther Combinations13Botanical with Nutrients2Amino acid/Protein1
Seaweed by product typeOther Combinations13Botanical with Nutrients2Amino acid/Protein1
Seaweed by product typeOther Combinations13Botanical with Nutrients2Amino acid/Protein1
Seaweed by product typeOther Combinations13Botanical with Nutrients2Amino acid/Protein1
Seaweed by product typeOther Combinations13Botanical with Nutrients2Amino acid/Protein1

Brands listing it most: Pure Essence Labs (3), NOW (3), Higher Nature (2), Anabolic Warfare (1), Swiss BioEnergetics (1), Vibrant Health (1), Enzymatic Therapy (1), Nature's Vision (1), LuckyVitamin (1), Maxi Health (1).

Every product listing seaweed

39 products, A to Z by name (page 1 of 1), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

Where next?