Chestnuts are rich in vitamin b 1 and b2, the content of vitamin b2 is at least four times that of rice, and every gram of 100 also contains 24 mg of vitamin C, which is incomparable to cereals. I'm afraid it's hard to imagine that fresh chestnuts contain more vitamin C than tomatoes, which is ten times that of apples! Vitamins can't pass the high temperature, so it's best to eat them raw if you supplement them with chestnuts. Eating raw food is ideal for tonifying kidney (this is from the perspective of Chinese medicine), but it should not be too much. It is best to take 6 capsules a day.