2. Fresh raw chestnuts should be eaten as soon as possible after they are bought home. Whether eaten raw or cooked, eating fresh chestnuts is of course the best. Fresh chestnuts contain a variety of nutrients, which can prevent and treat diseases such as hypertension, coronary heart disease and arteriosclerosis, and are a good product for prolonging life. Chestnut is also rich in vitamin C, which is good for teeth and bones. Children can promote development, while the elderly can delay aging and enhance physical fitness.