Phosphorus is a mineral that’s naturally found in protein-rich foods including dairy, fish, meat, and eggs—and our body needs it to help your kidneys, bones, and muscles function properly.It’s part of pretty much every cell in our body. Phosphate, on the other hand, is an inorganic derivative of phosphorus that’s often added to processed foods. “Usually it’s not for nutritional benefits but for food science,” . Phosphates are commonly used in processed cheese as emulsifiers to keep oil and water mixed together. In sodas, iced teas, and French fries, phosphates add color; they’re also found in powdered milk, powdered coffee, and pudding