If you are a vegetarian, ask about other ways to get your protein. Low-fat milk is a good source of protein. But milk is high in phosphorus and potassium. And milk adds to your fluid intake. Talk to a dietitian to see if milk fits into your food plan.
Sodium is found in salt and other foods.
Most canned foods and frozen dinners contain large amounts of sodium. Too much sodium makes you thirsty. Then, if you drink more fluid, your heart has to work harder to pump the fluid through your body. Over time, this can cause high blood pressure and congestive heart failure. Try to eat fresh foods that are naturally low in sodium.