1, Crab itself belongs to a kind of aquatic products, with rich nutritional value, which contains a lot of protein, calcium ions and chitin. Eating some crabs in a proper amount can have a certain effect of tonifying kidney and strengthening yang, can improve impotence and premature ejaculation caused by kidney-yang deficiency in men, and can prolong sexual life.

2. Secondly, the crab itself belongs to a kind of cold food, which has a certain relieving effect on men with mouth sores and can improve symptoms. And it can increase the strength of bones to a certain extent and delay the probability of osteoporosis.