Benefits: Crabs are rich in protein, trace elements and other nutrients, which have a good nourishing effect on the body. In recent years, studies have found that crabs also have anti-tuberculosis effects, and eating crabs is of great benefit to the rehabilitation of tuberculosis. It is generally believed that freshwater crabs are better for medicinal purposes, while seawater crabs are only edible. Traditional Chinese medicine believes that crabs have the effects of clearing away heat and toxic materials, nourishing bones and marrow, nourishing tendons and promoting blood circulation, dredging meridians, benefiting limbs and joints, nourishing liver yin and filling gastric juice. It has a certain therapeutic effect on diseases such as congestion, injury, jaundice, soreness of waist and legs and rheumatoid arthritis.