About Spirulina
Spirulina is a cyanobacterium (blue-green algae) with extensive clinical evidence. A 2016 meta-analysis (12 RCTs) found significant reductions in total cholesterol, LDL, and triglycerides with improvements in HDL. A 2020 systematic review confirmed anti-inflammatory effects with reduced CRP and IL-6. May also reduce blood pressure and improve glycemic control — a 2018 meta-analysis found significant fasting glucose reduction. Contains phycocyanin (antioxidant pigment), complete protein (~60% by weight), B12 (primarily pseudovitamin B12, not bioactive), iron, and gamma-linolenic acid. Source quality matters — must be tested for heavy metals and microcystin contamination.
What Spirulina supports
- Supports healthy cholesterol and lipid profiles
- Reduces inflammatory markers (CRP, IL-6)
- May support blood sugar regulation
- Nutrient-dense source of protein and antioxidants
How much Spirulina to take
Clinical studies typically use 1000–3000 mg of Spirulina. Meta-analyses use 1–8 g/day. Most supplement doses are 1–3 g/day. Higher doses (up to 8g) used in lipid studies.
- Effective range
- 1000–3000 mg
Clinical evidence
Moderate clinical evidence. Multiple meta-analyses (12+ trials) confirm improvements in cholesterol, inflammation, and blood sugar
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