wouldn't you expect clusters of pd if this was true, there is a lot of chlorella consumed by families, towns in china and japan. and a lot of younger pd patients? wouldn't it be like the people that got pd almost instantly like those taking that bad batch of speed or something like that?

and it appears it is widely used as protein source and food additive

https://wiki.umn.edu/pub/Biodiesel/W...Microalgae.pdf