Chestnut porridge tonifies kidney to relieve lumbago and leg pain caused by deficiency of kidney qi in middle-aged and elderly people. Chinese medicine believes that chestnut has the effects of tonifying kidney and spleen, strengthening body and bones, benefiting stomach and calming liver. Mainly used for kidney deficiency, waist and leg weakness, and can tonify kidney and replenish qi. Therefore, chestnut is also called "the fruit of kidney". Eating chestnut alone is not fully digested and absorbed, and porridge, as our traditional health food, has a good conditioning effect on the body. The important component of "porridge" is japonica rice or glutinous rice, which has excellent functions of strengthening the spleen and stomach and nourishing the day after tomorrow. It is not only easy to digest and absorb, but also nourishing the stomach. When the cooking temperature of white rice exceeds 60OC, it will gelatinize, and the cooked porridge will melt in the mouth, which is most suitable for people with weak gastrointestinal function. In this way, after improving stomach qi with porridge, the efficacy of chestnut porridge will be doubled compared with eating chestnuts alone.

For people with long-term backache and leg pain, generally, 3-5 raw chestnuts are added to100g of japonica rice to cook porridge, and an appropriate amount of refined salt is added after the porridge is cooked (because the salty taste can play the role of "dredging meridians", the treatment effect will be better), and it will be obviously improved after 1~2 times a day.