Phosphorus

Red meat contains more phosphorus than poultry, making poultry the preferred animal protein for phosphorus management. The bioavailability of phosphorus in eggs is uncertain; conflicting data means they remain acceptable on a kidney-disease diet. Phosphoric acid impairs the absorption of zinc and iron, compounding the micronutrient depletion caused by the sugar itself. Sodas are the worst phosphorus offender due to phosphoric acid as a food additive, compounded by the harm of sugar. Phosphorus accumulation in damaged kidneys contributes to cardiovascular complications and bone disease. Phosphoric acid erodes bones, directly reducing bone mineral density over time and increasing the risk of osteoporosis. Phosphoric acid destroys tooth enamel and causes cavities. Phosphoric acid is added to Coca-Cola primarily for its tart flavor and to reduce bacterial and mold counts in the beverage.