Dark-colored soda

In addition to the calories and sugar that sodas provide, they also contain phosphorus-containing additives, particularly dark-colored sodas. Many foods and beverage manufacturers add phosphorus during the manufacturing process to improve flavor, extend shelf life, and prevent discoloration. This added phosphorus is more readily absorbed by your body than natural, animal-based, or plant-based phosphorus. Phosphorus in the form of additives, unlike natural phosphorus, is not bound to protein. Rather, it is found in the form of salt and is easily absorbed by the intestine.

Phosphorus additives are commonly found in product ingredient lists. Food manufacturers, on the other hand, are not required to list the exact amount of additive phosphorus on the food label. While the amount of additive phosphorus in soda varies depending on the type, most dark-colored sodas are thought to contain 50–100 mg in a 200-mL serving. A 12-ounce cola contains 33.5 mg of phosphorus, according to the United States Department of Agriculture (USDA) food database. As a result, on a renal diet, sodas, particularly dark sodas, should be avoided.