Risk Assessment of BMAA
February 2008



The finding of the non-protein amino acid, β-methylamino-l-alanine (BMAA) with neurotoxic properties in the brain of patients with degenerative disorders and its reported presence in cyanobacteria found commonly in water sources used to provide drinking water has led to concern over its potential widespread effects on human health. This report collates the information currently available to inform a risk assessment of BMAA through this route.


The following knowledge gaps have been identified, where further research is required before a meaningful assessment can be made of the potential risk posed by BMAA to human health, particularly by exposure via drinking water:

Copies of this report may be available as an Acrobat pdf download under the 'Find Completed Research' heading on the DWI website.