Nutricost Chlorella Powder 8oz - Pure Chlorella - 3000mg Per Serving - High Quality, Non-GMO, Gluten Free

Chlorella is a green single-celled microalgae that contains the high concentrations of chlorophyll. The most common side effects include diarrhea, nausea, gas (flatulence), green discoloration of the stools, and stomach cramping, especially in the first week of use.