Potassium, a mineral found in many types of food, plays an important role in maintaining fluid and electrolyte balance in your body's cells. Potassium is also important in sending nerve impulses, helping your muscles contract, and releasing energy from protein, fat, and carbohydrates.
Since your blood volume expands by up to 50 percent during pregnancy, you'll need slightly more electrolytes (sodium, potassium, and chloride, working together) to keep the extra fluid in the right chemical balance.
If you suffer from leg cramps during pregnancy, you might take a look at your potassium intake, because a lack of potassium (or sodium, calcium, or magnesium) could be the culprit.
Pregnant women: 4,700 milligrams (mg) per day
Nursing moms: 5,100 mg per day.
Fresh fruits and vegetables, red meat and chicken, fish, milk and yogurt, nuts, and soy products all provide potassium. To give you a sense of how easy it is to obtain this important mineral from your daily diet, here's a list of some of the foods highest in potassium:
It's probably not necessary. A wide variety of foods contain this important mineral, so it should be fairly easy to get all the potassium you need through your diet.
Low potassium is most often the result of chronic or severe vomiting or diarrhea, or the use of certain diuretics, rather than a shortage in your diet.
A shortage of potassium could cause weakness, fatigue, muscle cramps, constipation, and abnormal heart rhythms. Talk with your doctor if you suspect that you're short on potassium or any other nutrient.