Where They're Found
Eating a balanced diet with a variety of foods normally keeps a person from developing a nutritional disorder or a major mineral deficiency. Vegetarians, for example, are at risk for iron deficiency.
Sodium is found in salt, beef, pork, cheese, sardines, nuts, sauerkraut, green olives, butter or margarine, canned and processed foods, etc. However, high blood pressure and other conditions require you to limit your sodium.
Potassium is in milk and other dairy products, meats, nuts, tomatoes, bananas, oranges, melons, potatoes, prunes, spinach and other leafy greens, beans, etc.
Calcium is also in milk as well as fish eaten with bones (example: sardines), eggs, fortified products, fruits, vegetables, beans, etc.