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Blue-green Algae (Spirulina): Dosing and Uses

 

Classes: Dermatology, Herbals; Nutritional, Supplements

Medically reviewed by Min Clinic Staff | Updated: January 2026

Suggested dosing of Spirulina (blue-green algae)

 

Leukoplakia

1 g PO qD x12 days

 

Blepharospasm

1500 mg (Super Blue-Green Algae (SBGA) capsules) PO

 

Suggested uses of Spirulina (blue-green algae)

Source of protein, iron, B vitamins

Oral leukoplakia, increase energy/metabolism

 

Efficacy

Effective as source of protein, iron (but expensive on a gram-for-gram basis compared to foods)

Likely effective for leukoplakia

Possibly ineffective as vitamin B12 source, weight-loss aid

 

Spirulina (blue-green algae) adverse (side) effects

Frequency not defined

Microcystin (Contaminant)

N/V

Abdominal pain

Hepatotox

Shock

 

Warnings

Contraindications

Hypersensitivity

Phenylketonuria

 

Pregnancy and lactation

Pregnancy category: N/A

Lactation: N/A

 

Pregnancy categories

A: Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.

B: May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk.

C: Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done.

D: Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk.

X: Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist.

NA: Information not available.

 

Pharmacology of Spirulina (blue-green algae)

Mechanism of action

See product labeL