Supplement
Spirulina
SaveSpirulina is a blue-green microalgae rich in protein, phycocyanin, and micronutrients, with evidence for lipid-lowering, antioxidant, and immune-modulating effects.
Quick verdict
Nutrient-dense superfood with moderate evidence for cholesterol and blood pressure reduction. Good safety profile.
Evidence score
A rough internal score reflecting quantity, quality, and consistency of human evidence. Not a clinical recommendation.
What the research shows
Meta-analyses show significant reductions in total cholesterol, LDL, triglycerides, and blood pressure. Phycocyanin provides unique antioxidant effects. Also studied for allergic rhinitis and exercise performance.
Benefits
- Reduces total cholesterol and LDL
- Rich in phycocyanin antioxidant
- Complete protein source
- May reduce allergy symptoms
Dosage notes
1–8 g daily. Most clinical benefits seen at 2–4 g daily.
Side effects
- GI discomfort
- Green stool discoloration
- Contamination risk in low-quality products
Who should be cautious
Risk of contamination with microcystins, heavy metals, or bacteria in unregulated products. Contraindicated in PKU (contains phenylalanine).
What this page cannot tell you
Quality control is critical. Only use products tested for contaminants. Immune-stimulating effects may be problematic in autoimmune conditions.
Leaderboard scores
- Immunity50
- Longevity45
- Energy40
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