Sodium and potassium: Finding the right balance

When people hear the word sodium, they often think, "I need less of it." While most Americans do consume more sodium than recommended, the goal isn't to eliminate sodium altogether. Sodium and potassium are essential minerals, known as electrolytes, that work together to regulate fluid balance, nerve function, muscle contractions and heart rhythm. The key is not avoiding one but maintaining the right balance between the two. Unfortunately, the typical American diet is high in sodium and low in potassium, creating an imbalance that can negatively affect health.

Sodium helps the body maintain fluid balance and supports normal nerve and muscle function. Potassium works alongside sodium by helping relax blood vessel walls, supporting muscle contractions and encouraging the kidneys to excrete excess sodium. According to the American Heart Association, consuming too much sodium and too little potassium is associated with an increased risk of high blood pressure, heart disease and stroke. Rather than focusing solely on reducing sodium, increasing potassium-rich foods can help restore a healthier balance.

The problem isn't usually the saltshaker, it's pre-packaged and processed foods as well as fast food and restaurant foods. The Centers for Disease Control and Prevention reports that more than 70% of the sodium Americans consume comes from packaged, processed and restaurant foods rather than salt added during cooking or at the table.

Potassium, on the other hand, is naturally abundant in whole foods such as bananas, potatoes, sweet potatoes, spinach, tomatoes, beans, yogurt, avocados, oranges and leafy greens. Diets rich in fruits and vegetables naturally increase potassium while also providing fiber, vitamins and antioxidants.

During the warm summer months or prolonged exercise, the body loses both sodium and potassium through sweat. While replacing fluids is essential, most recreational exercisers can replenish electrolytes by eating a balanced diet and drinking water. Individuals participating in prolonged, high-intensity exercise or working outdoors in extreme heat may need additional electrolyte replacement. The American College of Sports Medicine notes that hydration and electrolyte replacement should be based on the duration and intensity of activity, as well as environmental conditions.

Not everyone should increase potassium without guidance. Individuals with kidney disease or those taking certain blood pressure medications should speak with their health care provider before making significant dietary changes, as excess potassium can also be harmful. Consider these tips for maintaining a healthy sodium-potassium balance:

- Choose fresh foods more often than processed or packaged meals.

- Eat potassium-rich foods such as fruits, vegetables, beans and potatoes daily.

- Read nutrition labels and compare sodium content when shopping.

- Flavor foods with herbs, spices, citrus or vinegar instead of extra salt.

- Stay hydrated, especially during hot weather and exercise.

Sodium and potassium are partners, not opponents. Your body needs both to function properly, but most of us consume far more sodium than potassium. By choosing more whole foods and fewer processed foods, you can improve this balance, support healthy blood pressure and help your heart, muscles and nervous system perform at their best.

Missy Corrigan is the chief executive officer of the YMCA of Sumter. You can email her at mcorrigan@ymcasumter.org.