Algae, including spirulina and AFA from Klamath Lake, can contain cyanotoxins, with some products exceeding tolerable daily intake levels.

“well technically they're plants and they're going to have defense chemicals this is the first principle in fact when you think about something being rooted in the ground whether it's a fungus or it's a plant or it's an algae that really can't run away and defend itself these have had to develop defense chemicals”