Particularly vitamin B12, 100 grams of crab meat alone contains more than the recommended daily intake of vitamin B12 per person, so it is usually easy to feel depressed, tired, or peripheral nerves will feel numbness, pain in the people, can be eaten in moderation.　　Although crab meat is rich in nutrients, it contains high cholesterol, which is even more significant when added to crab yolk and crab paste. Therefore, those who have concerns in this regard (e.g., people suffering from gallstones, systemic lupus erythematosus, allergies, and gastrointestinal disorders) should exercise moderation when consuming it in order to avoid affecting their health. In addition, there is the issue of calories, crab meat is very high in calories, if you want to control your weight, you have to pay attention to the amount of food!　　According to traditional Chinese medicine, crab is cold and salty in nature, and should not be eaten by those who have cold hands and feet (especially women), or who have a weak body or are weak. Or you can add more ginger, green onion, garlic and other spices when cooking, so that these hotter ingredients, neutralize the cold properties of crab. Or drink a cup of yellow sugar ginger tea after eating crabs to warm the stomach, remove the fishy, and drive away the cold. In addition, folk believe that before and after eating crabs should not eat cool fruits, such as persimmons, in fact, in order to avoid eating too much cold food, resulting in body cold and cause discomfort. The above is not suitable for eating crab crowd introduction, you understand?