PlainVitamins

botanical

Spirulina supplements

Half of the 92 spirulina supplements in the NIH label database that print an amount list 500 mg or less per serving; the middle half list 187.5 mg to 1,000 mg (DSLD version 9.4.0, January 2026). The 20 products whose only supplement ingredient is spirulina list a median of 991.5 mg.

Products listing it
29592 print an amount; 203 list it inside a blend without an amount
Median per serving
500 mgmiddle half 187.5 mg to 1,000 mg

How much spirulina do supplements contain?

The median product lists 500 mg per serving. One in ten lists 32 mg or less, one in ten 3,000 mg or more. The amount printed most often is 500 mg (12 products).

Products by amount of spirulina per serving

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

Spirulina: products by amount per serving3 mg10 mg100 mg1,000 mg
Spirulina: products by amount per serving3 mg10 mg30 mg100 mg1,000 mg
Spirulina: products by amount per serving3 mg10 mg30 mg100 mg300 mg1,000 mg
Spirulina: products by amount per serving3 mg10 mg30 mg100 mg300 mg1,000 mg3,000 mg
Spirulina: products by amount per serving3 mg10 mg30 mg100 mg300 mg1,000 mg3,000 mg
The amounts printed most often
Amount per servingProductsFor example
500 mg12 100% Fermented Organic Greens Unflavored (Natural Factors Whole Earth & Sea); Source of Life Green and Red Mini-Tabs (Natures Plus); Greens Unflavored (Natural Factors Whole Earth & Sea)
1,000 mg10 Green Blends Cleansing Powder (Earthrise); Green Blends Cleansing Caplets (Earthrise); Spirulina + Chlorella (Onnit)
3,000 mg9 Spirulina Powder (The Vitamin Shoppe); Spirulina (Noevir); Green Complete Superfood Powder Natural Vanilla (Nutrex Hawaii)
200 mg6 Apple Cider Vinegar Complex (Thrive Naturals); Max Energy Greens (tnvitamins); Mega Greens 600 mg (Wonder Laboratories)
100 mg5 Overtraining Solution Unflavored (Ambrosia); Vida (Ambrosia Collective); The Lemon Lean Diet 1500 (Totally Products)
250 mg5 Chlorella Plus (Douglas Laboratories); Source of Life Men with Saw Palmetto, Lycopene & Lutein (NaturesPlus); Stacked Greens Orchard Apple (Evlution Nutrition)
300 mg4 Herbal Superfood Energy (Williams Nutrition); Micro Factor Fruits & Veggies (1st Phorm); Chlora-xym (U.S. Enzymes)
1,156 mg3 Spirulina Alcohol Free (Hawaii Pharm); Spirulina Sugar Free Alcohol Free (Herbal Terra)
2,000 mg3 Phyto Greens Powder (Genestra Brands); Spiru-Blue (Dr. Mercola); Organic Spirulina Extract (Herbadiet)
1.5 mg2 Turmeric PM (Nobi Nutrition); Turmeric & Ginger (Nobi Nutrition)

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 spirulina?

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 spirulina by DSLD product type

Spirulina by product typeOther Combinations59Botanical15Non-Nutrient/Non-Botanical13Botanical with Nutrients5
Spirulina by product typeOther Combinations59Botanical15Non-Nutrient/Non-Botanical13Botanical with Nutrients5
Spirulina by product typeOther Combinations59Botanical15Non-Nutrient/Non-Botanical13Botanical with Nutrients5
Spirulina by product typeOther Combinations59Botanical15Non-Nutrient/Non-Botanical13Botanical with Nutrients5
Spirulina by product typeOther Combinations59Botanical15Non-Nutrient/Non-Botanical13Botanical with Nutrients5

Brands listing it most: Nutrex Hawaii (4), Evlution Nutrition (3), Natural Factors Whole Earth & Sea (3), GHOST (3), Hawaii Pharm (3), Nobi Nutrition (2), Rainbow Light (2), Irwin Naturals (2), Totally Products (2), Y.S. Eco Bee Farms (2).

Every product listing spirulina

295 products, A to Z by name (page 5 of 6), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

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