Chestnuts and crabs can generally be consumed together without adverse reactions. Because crabs are rich in nutrients such as proteins, vitamins and minerals, they can provide some energy for the body, replenish some of the nutrients needed, and maintain normal life activities to a certain extent. And chestnuts are rich in starch, plant protein, minerals, B vitamins and other nutrients, also has some nutritional value. The two do not have the problem of incompatibility, so they can be eaten together. Therefore, crabs and chestnuts can be eaten together without adverse reactions. However, it should be noted that the two should not eat too much at once, and those who are allergic to crabs or chestnuts are forbidden to eat.