Is Spirulina safe? I heard that it can contain toxins, such as BMAA and microcystin toxin.
Concern has been raised by the fact that BMAA, a neurotoxic compound, can be produced by organisms related to Spirulina
-- a common ingredient in dietary supplements, including "green" powders and drinks. Commonly referred to as a blue-green algae, Spirulina
is actually a type of cyanobacteria (formerly called blue-green algae) and many cyanobacteria can produce BMAA. However, small studies suggest that dietary supplements with Spirulina
are generally safe. Concerns remain, however, about other blue-green algae, particularly Aph. flos-aquae
Another concern with supplements made from cyanobacteria is contamination with microcystin toxin — a liver toxin, which appears to be common in A. flos-aquae
supplements but has also been found in some Spirulina
Get the details about this in the Greens and Whole Foods Powders and Pills Review >>
This CL Answer initially posted on 2/12/2016.
Last updated 8/2/2017.