Phosphates are obtained from naturally occurring phosphate rock. Potassium phosphate is commercially derived from the neutralization of phosphoric acid with potassium hydroxide or potassium carbonate. When used as food additives, they almost don't have any side effects and security has been authorized by the U.S. Food and Drug Administration (FDA) and European Food Security Authority (EFSA), as well because the Joint FAO/WHO Knowledgeable Committee on Meals Additives (JECFA). ...