Plant MedicineSpirulina
Spirulina

Spirulina

Arthrospira platensis

Family: N/A

Also known as: Blue-green algae

At a glance

Best for: Protein, Nutrients, Detox support
Parts used: Whole organism
Common forms: Powder, Tablets, Capsules
Evidence level: Promising
Immune
Metabolic
Powder
Tablets
Capsules
Africa
Asia
Central America

What it is

Spirulina is a type of cyanobacteria (blue-green algae) that grows in warm, alkaline waters. It's been consumed for centuries.

Traditional use

Eaten by Aztecs and African tribes near Lake Chad. Rediscovered in 1960s as protein-rich superfood.

What modern research suggests (Promising)

Studies show potential benefits for immune function, cholesterol, blood pressure, and antioxidant status. Very nutrient-dense.

How people use it

Powder (1-3 tsp daily in smoothies), tablets/capsules (3-5g daily). Has strong, earthy flavor.

Safety + interactions

Generally safe from clean sources. Must be tested for microcystins (liver toxins) and heavy metals. May stimulate immune system—caution with autoimmune conditions.

May interact with: Immunosuppressants

Name clarity note

True spirulina (Arthrospira) is different from toxic microcystis blooms. Use cultivated, tested products only.

Quality notes

CRITICAL: Must be from controlled, clean sources. Test for microcystins and heavy metals. Avoid wild-harvested.

FAQs

Is it safe?

Yes, if from controlled, tested sources. Wild blue-green algae can be toxic—only use cultivated spirulina.

Is it a good protein source?

It's 60-70% protein by weight and complete (all amino acids), but you'd need large amounts to replace other proteins.

Community Insights

Premium members share their experiences and knowledge about this plant.

Disclaimer: This content is educational and not medical advice. Always consult a qualified healthcare provider before using any herbs or supplements, especially if you are pregnant, nursing, taking medications, or have a medical condition.

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