Filix Pharma uses Chelated Minerals from Biotron Laboratories (USA) instead of conventional minerals. The main issue in using minerals like Iron, Calcium, Zinc supplements is absorption as, traditionally, these minerals are bounded as Carbonates, Sulphates, Glucunates or Oxides which are poorly absorbed, causing gastrointestinal (GI) upsets like nausea, vomiting, cramps, diarrhea or constipation. Chelated Minerals (Zinc, Iron, Calcium) with amino acids are absorbed effectively and easily and no need to take extra higher strength