About Aphanizomenon flos-aquae
"Blue-green algae" usually means Aphanizomenon flos-aquae (AFA, Klamath algae), distinct from spirulina and chlorella. Marketed for energy/mood but human RCT evidence is minimal and low quality. Safety caveat: wild-harvested AFA can be contaminated with microcystin hepatotoxins and neurotoxins, so source quality matters. Grade low.
What Aphanizomenon flos-aquae supports
- Whole-algae source of protein and pigments
How much Aphanizomenon flos-aquae to take
The RDA prevents deficiency. The effective range is what clinical trials used to actually move the outcome.
Effective
500–2000
mg
No established therapeutic dose; nominal range for a blend component.
Clinical evidence
Limited clinical evidence. Minimal RCT data; contamination-risk caveat for wild AFA.
Reference