Eating pork kidneys has a certain effect on tonifying the kidney, but don't eat too much, as extremes meet. Usually, you can also eat some other kidney-tonifying foods, such as yam, black rice, black beans, leeks, mushrooms, chestnuts, black sesame seeds, red beans and lotus seeds. The most important thing is to do some physical exercise to improve your resistance. Pay attention to the normal life and diet every day, and do physical exercise on time, which is good for your health, and don't overdo it.