Does consuming soy sauce make wounds turn black?

Generally speaking, consuming soy sauce will not cause a wound to turn dark. The detailed explanation is as follows:

Although soy sauce appears dark brown, its main components are amino acids, salt, sugars, and various flavor compounds; it does not contain substances that directly affect skin pigmentation in the human body. Wound pigmentation is typically associated with multiple factors, such as post-inflammatory pigmentation, ultraviolet radiation, changes in endocrine function, and genetic factors, and is not directly related to soy sauce consumption. Additionally, during the wound healing process, skin cells undergo regeneration and repair, which may result in pigmentation. However, this phenomenon is unrelated to soy sauce intake. The pigment components in soy sauce are broken down by the digestive system after consumption and do not directly act on the wound site. Therefore, they do not cause the wound to darken.

A balanced diet is necessary during wound recovery, and consumption of overly spicy or irritating foods should be avoided. It is also important to follow medical advice for proper wound care in order to promote rapid healing. If any abnormal changes occur with the wound, prompt medical consultation is recommended.