I thought I would post my experience with taking Blue-green algae in helping depression. I have suffered from mild Depression / the general blues for as long as I can remember (I'm 33).I have been taking blue-green algae in the powdered form for a couple of months now, and I feel fantastic! My Depression has lifted, and I feel in a good mood for the majority of the time now. I think it is micraculous. The reason is that the algae contains a high level of protein which has all the essential amino acids which is vital for good brain function, and helps makes the neurotransmitters that are vital for good mood.