But other experts disagree about this proposed cause effect relationship and, although
Stommel thinks there may be clusters representing an increased risk of developing ALS among people exposed to blue-green algae he has not yet reportedly looked at the age at onset of the subjects in these clusters.
BMAA is also found in shark fins suggesting that consumption of shark fin soup might increase the risk of ALS and other neurodegenerative diseases.
Link to full story which originally appeared on VPR.NET
Link to related story on CBSNEWS.com
Link to paper published in January 2016 in the Proceedings of the Royal Society B.