People with a weak stomach can eat a small amount of crab, crab nutrition is also very rich in protein, crab yolk also contains a lot of cholesterol and other nutrients, but people with a weak stomach should eat less crab. Because crabs are cold foods, people with a weak stomach will suffer from epigastric discomfort, abdominal pain and indigestion if they eat too much cold food. At the same time, crabs also contain a lot of protein, for people who originally have a bad stomach and weak digestive function, if you eat a lot of crabs, it will also lead to aggravate the situation of weakened digestive function. Because protein in crab is a kind of heterogeneous protein, if it is allergic gastroenteritis, this heterogeneous protein after eating, will also lead to stomach bad people appear abdominal pain or even diarrhea, and a large number of cholesterol oil components, will also appear to affect the interference with the digestive function. Therefore, it is recommended to eat a small amount of crabs, do not eat too much so as not to aggravate the burden on the digestive function, abdominal pain, diarrhea and other discomforts.