The diet of patients with low potassium and low sodium should be rich in foods containing sodium chloride and foods with high potassium content to replenish potassium and sodium for the body and relieve the symptoms of low potassium and low sodium. Patients with low potassium and low sodium can eat more bananas, tangerines, oranges, which are fruits with high potassium content, and also eat soybeans, corn, buckwheat and other coarse grains with high potassium content. There are also some seafood, potassium content is also relatively high, such as purple cabbage, kelp, etc., eat more can also replenish potassium. Low sodium patients can drink more salt water to supplement sodium. Mild low potassium and low sodium, can be adjusted through diet, but severe low potassium and low sodium patients want to simply through the diet is difficult to correct, if necessary, need to use medication under the guidance of a professional physician, you can replenish potassium and sodium through intravenous rehydration.