Weakness of legs should be selected according to the specific cause of the treatment program, and there is no special food to promote recovery. In terms of medication, if it is caused by nerve damage you can choose medication to nourish the nerves, and if it is caused by osteoporosis, you need to supplement calcium or osteotriol, etc. 1. Nutritional nerve medication: If the weakness of legs is caused by the lesion of nervous system, you can usually choose to take nutritional nerve medication for treatment, such as methylcobalamin, etc., to promote the recovery of nerve function. 2. Drugs for activating blood circulation and removing blood stasis: the bilateral lower limbs have the problem of poor blood circulation, which is easy to appear the symptoms of weakness of legs, you can choose to take drugs for activating blood circulation and removing blood stasis to promote the recovery, such as Panax ginseng powder and so on. 3. Calcium replenishment drugs: some patients have calcium deficiency, which is easy to produce osteoporosis, thus leading to weakness of legs, you can choose to take calcium gluconate, calcitriol or calcitonin and other drugs to promote recovery. It should be noted that the above drugs should be used under the guidance of a doctor. Weakness of legs may also be caused by potassium deficiency, myasthenia gravis and other reasons, which need to be clarified first and take treatment measures according to the causes. In addition to medication, exercise rehabilitation can be used to speed up recovery and prevent motor dysfunction.