Verified
“California spirulina.”
The front panel reads 'California Spirulina Powder' and 'Product of USA'.
Anthony's California Spirulina Powder, 8 oz Review
SAC StudioBest US-Grown PowderBUY
8.5/10SAC Product Score™
How the score breaks downHide breakdown
SAC Product Score™ — how it breaks down
- Dose vs Clinical Range25%9.2
- Purity & Contaminant Control25%8.4
- Label Transparency20%8.6
- Certifications & Sourcing15%7.0
- Value15%9.0
The US-grown powder to buy if organic is not your deal-breaker
✓ Buy if…
- You want a US-grown powder rather than an import
- You want per-serving minerals on the label
✗ Skip if…
- USDA Organic is a requirement for you
- You dislike the taste of plain spirulina in water
Read the full analysis
✓ Also buy if…
- You want a full 3 g dose for around a quarter
✗ Also skip if…
- You want a printed third-party heavy-metal testing claim
Anthony's sells its spirulina as a food, and the label follows: a Nutrition Facts panel with 3 g spirulina, 2 g protein, 2.4 mg iron, 9 mg calcium, 45 mg potassium and 20 mg sodium per teaspoon, 75 servings per 8 oz bag. It is California-grown, batch-tested gluten-free and Non-GMO, but not organic-certified. For a US-grown powder at roughly $0.26 per dose, that is a strong trade.
How we built the SAC Product Score™ — 8.5/10
Dose vs Clinical Range25%9.2/10
One teaspoon (3 g) is the studied daily dose; the 8 oz bag holds 75 of them.
Purity & Contaminant Control25%8.4/10
California cultivation and batch testing for gluten, but no heavy-metal or microcystin testing claim printed; no Prop 65 warning.
Label Transparency20%8.6/10
Nutrition Facts panel declares 2 g protein, 2.4 mg iron, 9 mg calcium, 45 mg potassium and 20 mg sodium per teaspoon.
Certifications & Sourcing15%7/10
Gluten Free (batch tested), Non-GMO, Vegan Friendly and Product of USA on the pack; no organic seal.
Value15%9/10
About $0.26 per 3 g serving: the cheapest US-grown dose on the list.
The product at a glance
- Form
- Powder
- Serving
- 1 teaspoon (3 g)
- Count
- 8 oz (226 g), 75 servings
- Disclosed per serving
- 2 g protein, 2.4 mg iron, 9 mg calcium, 45 mg potassium, 20 mg sodium
- Other ingredients
- None
- Seals
- Gluten free (batch tested), Non-GMO, vegan friendly, Product of USA
- Cost per dose
- ~$0.26 per 3 g serving
Marketing claims vs. reality
Verified
“Batch tested gluten free.”
The pack states gluten-free batch testing; it is the only purity test explicitly claimed on the label.
Not verified
“Organic.”
No organic seal appears on the panel. Anthony's sells this as a conventional, non-organic California powder.
What our test actually found
01A food label, not a supplement label, and that is a plus
Anthony's prints a Nutrition Facts panel with iron, calcium, potassium and sodium per teaspoon. That is more mineral disclosure than any organic powder here, and it lets you count the iron toward your day.
02US-grown without the US-grown price
Nutrex and Earthrise charge fifty to sixty-five cents per dose for named-farm spirulina. Anthony's California powder costs about a quarter. You give up organic certification and tablets, not origin.
Pros & cons, no sugar-coating
Pros
- California-grown, Product of USA
- Full 3 g teaspoon dose for about $0.26
- Iron, calcium, potassium and sodium disclosed
- No excipients; single ingredient
Cons
- Not organic certified
- No heavy-metal or microcystin testing claim on the pack
- Plain powder taste; needs a smoothie
The value pick among US-grown spirulina
If you want to know where your algae grew and do not need an organic seal, this is the cheapest way to a disclosed, 3 g, US-grown dose. It ranks above the organic powders because origin and mineral disclosure beat a seal on a bare panel.
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If this doesn’t fit — try these
Nutrex Hawaii Pure Hawaiian Spirulina
8.8/10Hawaiian-pond spirulina that hits the full 3 g trial dose in one six-tablet serving, declares its iron and protein, and carries the longest seal list on the list.
See it on the list →Earthrise California Spirulina
8.6/10The only product here that prints its c-phycocyanin content, 165 mg per 3 g serving, from a single California farm; you pay for that transparency with the highest cost per dose on the list.
See it on the list →NOW Organic Spirulina 1,000 mg
8.4/10A QAI-certified organic 1,000 mg tablet with no excipients at all, from a brand with in-house testing labs; three tablets reach the trial dose for about a third of a dollar.
See it on the list →Sources & further reading
- Serban MC, et al. Clin Nutr. 2016;35(4):842-51.Serban MC, Sahebkar A, Dragan S, et al. · 2016 · Clinical Nutrition · PMID 26433766
A systematic review and meta-analysis of the impact of Spirulina supplementation on plasma lipid concentrations
Pooling seven randomized trials, spirulina supplementation lowered total cholesterol, LDL and triglycerides and raised HDL, with doses across the trials ranging from about 1 to 8 g a day.
- Cingi C, et al. Eur Arch Otorhinolaryngol. 2008;265(10):1219-23.Cingi C, Conk-Dalay M, Cakli H, Bal C · 2008 · European Archives of Oto-Rhino-Laryngology · PMID 18343939
The effects of spirulina on allergic rhinitis
In a six-month double-blind, placebo-controlled trial, 2 g of spirulina a day significantly reduced allergic-rhinitis symptoms including nasal discharge, sneezing, congestion and itching versus placebo.