Can Spirulina Be Toxic

Spirulina — like any blue-green algae — can be contaminated with toxic substances called microcystins. It can also absorb heavy metals from the water where it is grown. For these reasons, it is important to buy spirulina from a trusted brand.

Is spirulina high in heavy metals?

Many commercially-available brands of spirulina have low levels of heavy metals that do not fall within an unsafe range, according to a study published in the Saudi Journal of Biological Sciences in 2013. However, some brands are found to contain toxic levels of heavy metals such as lead, mercury and arsenic.

Does organic spirulina have heavy metals?

This creates the optimal conditions for growing safe, nutrient-dense spirulina that’s free from heavy metals, toxins, and radiation contamination. Not only does our spirulina come from a very clean source; it’s also USDA certified organic, which means you don’t have to worry about chemical fertilizers and pesticides.