Why Do We Need Potassium?

Potassium is a mineral that’s not only found in bananas, but also citrus fruit, green leafy vegetables, yogurt, beans, whole grains, and sweet potatoes. Researchers suggest that it’s wise for people to increase the amount of potassium in their eating patterns, since potassium can help lower blood pressure, regardless of sodium intake.

Dr. Alicia McDonough, a professor of cell and neurobiology at the Keck School of Medicine at the University of Southern California (USC), evaluated the diets of several populations and found that higher potassium intakes were associated with lower blood pressure, no matter what the sodium intake was. Her review included a combination of interventional and molecular studies evaluating the effects of dietary potassium and sodium on high blood pressure in various populations. During this review, she found that the kidneys get rid of more salt and water when dietary potassium intake is high. McDonough likens high potassium intake to taking a diuretic or water pill.

The Institute of Medicine (IOM) suggested that adults consume 4.7 grams of potassium daily to reduce blood pressure, reduce the impact of high sodium intake, and slash the risk of bone loss and kidney disease. Dr. McDonough notes that consuming just ¾ cups of dried beans daily can help individuals reach half of their potassium goal.

Here are more ways to obtain more potassium:

• Eat an orange or banana daily.
• Include green leafy vegetables daily. Think broccoli, spinach, or kale.
• Snack on unsalted nuts.
• Add an avocado to your salad or sandwich.
• Choose dark orange fruits and vegetables like melon and sweet potatoes.
• Enjoy kiwi, mango, or papaya regularly.

Adapted from article by By Lisa Andrews, MED, RD, LD in Potassium and Your Health