Crabs are rich in nutrients, including protein, amino acids, calcium, iron, zinc, potassium, vitamin A, vitamin B, vitamin E and so on. Traditional Chinese medicine believes that crabs are cold and salty, and belong to the liver and stomach meridians. They have the effects of clearing away heat and toxic materials, nourishing bones and marrow, nourishing tendons and bones, promoting blood circulation and eliminating phlegm, and promoting diuresis and eliminating jaundice, and have certain effects on adjuvant treatment of blood stasis injury, jaundice, waist and leg pain and other diseases.

Although crabs have high nutritional value and dietotherapy efficacy, there are many matters needing attention when eating crabs.

1. Eat crabs fresh enough and eat them after steaming and cooking.

2. Crabs are cold and should not be eaten too much to avoid abdominal pain and diarrhea. Patients with spleen-stomach deficiency and abdominal pain in loose stool should be careful to eat crabs.

3. Crabs are foods with moderate purine content. Patients with gout should limit their diet, and it is generally not recommended for patients with acute gout to eat crabs. Patients with gout in stable period can eat it in small quantities and intermittently.