Eating soy sauce does not make wounds darker. Many people think that soy sauce is darker and that after eating soy sauce, it may make wounds darker, these are actually not scientifically justified. Soy sauce is a very common condiment, soy sauce is darker because soy sauce contains more pigments, soy sauce into the human body, will be digested and absorbed by the human gastrointestinal tract, the remaining part will be discharged with the stool, these pigments contained in soy sauce, and will not be deposited to the patient’s wound, so eating soy sauce does not make the wound black, patients with wounds, is also possible to eat some soy sauce. In addition, to promote wound healing, you should also eat more food rich in high quality protein to supplement amino acids and promote wound healing. Also to eat more fresh vegetables and fruits such as cucumber, tomatoes, apples, bananas, kiwi, these can supplement vitamins to promote wound healing and facilitate recovery from the disease.