Crabs are cold, so crabs have a lot of coldness. Eating too much in the stomach will make you feel uncomfortable, resulting in deficiency and cold of the spleen and stomach, severe decline in gastrointestinal digestive function, and indigestion such as diarrhea, abdominal distension and abdominal pain may also occur. In addition, menstrual women should avoid eating crabs or eat less, otherwise it may lead to palace cold, aggravated dysmenorrhea, decreased menstrual blood, and even menopause.

Crabs are allergic, and allergic people are not allowed to eat crabs. If their immunity is low, even if they used to eat crabs, they can't eat them now, let alone eat more, which may cause allergies. Among them, patients with digestive system diseases have the most allergies, some have diarrhea, abdominal pain, vomiting, and even severe systemic allergic symptoms.

Eating crabs is not meat, but crab roe and crab paste are the best. However, although these two things are delicious, they contain a lot of cholesterol. 100g crab paste contains 466mg of cholesterol, and 100g crab meat contains 65mg of cholesterol, which is a typical high cholesterol food. Eating too much will cause excessive cardiovascular and cerebrovascular load and easily lead to hyperlipidemia, hypertension, cerebral thrombosis and other diseases.