Medical evidence shows that a certain concentration of potassium ions in the blood is essential for maintaining normal muscle movement, cardiac function, and immune function.
If a person's dietary intake of potassium is significantly lower than required, symptoms such as muscle weakness, cramps, and even paralysis, as well as arrhythmia, may occur.
Generally, healthy adults do not suffer from potassium deficiency, but the elderly are different. Firstly, due to poor dental health, reduced digestive and absorption functions in the intestines, and monotonous diets, the elderly often have insufficient potassium intake. Secondly, the prevalence of hypertension and diabetes is higher among the elderly, and some medications used in their treatment can increase the excretion and consumption of potassium, making them more susceptible to hypokalemia. Potassium deficiency is more common in summer due to heavy sweating, but some data also indicate that a sharp drop in temperature is another high-risk period for potassium deficiency.
So, how can the elderly supplement potassium? Experts believe that if the deficiency is not severe, it can be adequately addressed through diet. For potassium supplementation in the elderly, potatoes, bananas, bok choy, and rapeseed are top recommendations because these foods have the highest potassium content. In addition to fresh fruits and vegetables, egg yolks, liver, lean meat, and seafood should also be consumed in a balanced manner.
Furthermore, some adjustments should be made in daily life. For example, after heavy sweating, one can drink sports drinks. If symptoms are severe, one should go to the hospital to take potassium supplements or receive intravenous infusions under a doctor's guidance.