The effects of chestnuts are as follows: 1. They can benefit the qi and strengthen the spleen, so for people with weakness, lazy speech, spleen deficiency, diarrhoea, regurgitation and vomiting, and indigestion, if they eat chestnuts properly, they can nourish the spleen and stomach meridians, which in turn can benefit the qi and blood and strengthen the spleen; 2. They can nourish the kidneys and strengthen the tendons, because from the perspective of Chinese medicine, chestnuts also enter the kidney meridians, so for people with fractures and injuries, weakness of the waist and knees, and osteoporosis, if they eat chestnuts properly, they can nourish the kidney meridians and achieve the obvious effect of nourishing the kidneys and strengthening the tendons and bones.