100 grams is not much.

Chestnut contains many vitamins that are beneficial to the oral mucosa, such as vitamin B2. Vitamin B2 is also known as riboflavin. If the body is deficient, inflammatory reactions will occur in the oral cavity, skin, reproductive and other systems. For example, the "bad corners of the mouth" that people often say is related to infection and lack of vitamin B2.

Severe lack of vitamin B2 may also cause conjunctivitis, blepharitis, corneal vascular proliferation, photophobia and other symptoms. 100 grams of fresh chestnuts contain 0.17 grams of vitamin B2, which is 3 times that of noodles of the same weight, 5 times that of rice, and 4 times that of potatoes. Therefore, for those who have oral ulcers or often have "bad corners of the mouth", it is good for the body to eat some chestnuts regularly.

Data for people with low immunity show that the vitamin C content of cooked chestnuts in Beijing is 36 mg per 100 grams (starch has a protective effect on vitamin C, and different varieties have different data).

Not only higher than ordinary nuts and grains, but even higher than many vegetables and fruits. Vitamin C can be called the "defense minister" of immunity. Long-term deficiency will cause the immune system function to decrease. In addition, lack of vitamin C is also prone to gum bleeding, subcutaneous ecchymosis, oral ulcers, and difficult wound healing.