But that study didn&#x27;t seem to find a problem in procured supplements:<p>&quot;Using two advanced LC-MS&#x2F;MS techniques, we were <i>unable to detect</i> BMAA to a level of 80 ng&#x2F;g in any of the product samples. Although reassuring, the small sample of pure spirulina and spirulina-containing retail products can only be considered as a preliminary step toward larger investigations...&quot;