It is not recommended to talk about “coolness” or “heatiness”, as there is no uniform definition of food flavors and insufficient evidence on their classification. Crab is a food and does not have the attributes of hot or cold. Moderate consumption of crab can provide the body with the nutrients contained in crab. Crab contains certain nutrients such as cholesterol, copper, zinc, sulfur, calcium, vitamin B12, etc. It also contains vitamin E, vitamin C, riboflavin, niacin, pantothenic acid, folic acid, methionine, threonine, tryptophan and other nutrients. Therefore, the above nutrients can provide the organism with some of the required nutrients. However, crab is a food, not a medicine, and has not been proven to have any therapeutic effect, so it has no therapeutic effect on the diseases of the organism. Although crabs are good, they should not be consumed in excess, so as not to cause bloating and other discomforts.