BMAA, an algal toxin, can cause amyloid accumulation and is linked to Alzheimer's disease in populations consuming fruit bats that eat BMAA-laden fruit.

“somebody else is like oh it's all BMA BMAA which is a an algal and algal toxin which which causes amyloid accumulation in like this again this hunter-gatherer population who they eat these fruit bats who eat this fruit that has a lot of BMAA in it and then these guys get outside as disease”