Fact is, toxicological studies of the effects of algae (
primarily spirulina) consumption on humans and animals, including feeding as
much as 800mg / kg, and replacing up to 60 % of
protein intake with algae sources, have shown no toxic effects, and in contrast, algae intake has actually been found to prevent damage caused by toxins that affect the heart, liver, kidneys, neurons, eyes, ovaries, DNA, and testicles.