On the remote Pacific island of Guam, the biomagnification of a naturally occurring neurotoxic amino acid in successive stages of the food chain ... measured the amounts of the excitotoxic non-protein ...

BMAA, a non-protein amino acid, was initially thought to be restricted to cyanobacteria living as symbionts in the roots of cycads, such as those found on the island of Guam. Among the Chamorro ...