Tuna salad on lettuce with low-salt crackers and iced tea is the best choice. It includes a high biological protein source and is low in sodium, potassium, dairy, and phosphorus. A meal of tomato soup, grilled low-fat cheese sandwich, and diet soda is high in sodium, phosphorus, and fluid. A meal of a cheeseburger with french fries, a side salad, and a milkshake is high in salt, fat, sugar, and dairy. A ham and cheese sandwich on whole-grain bread with pickle, potato chips, and milk is high in salt and phosphorus.