“…The quality of these supplements has been often questionable among the scientific community [ 41 , 42 , 43 , 44 , 45 , 46 ]. Several reports have called attention to potential hazardous components in Cyanobacteria- and/or Chlorella -containing food supplements sold in the European market coming from non-EU countries [ 11 , 47 , 48 , 49 ]. Cyanotoxins, such as Microcystins, are potent hepatotoxins produced by several cyanobacteria ( Planktothrix , Microcystis , Aphanizomenon , Nostoc , and Anabaena genera) [ 50 ].…”