Can I take collagen during my menstrual period?
Generally speaking, it is acceptable to consume collagen protein during menstruation, but attention should be paid to controlling the intake amount. The detailed explanation is as follows:

Collagen is a type of protein that plays a certain role in maintaining the body's structure and function. Menstruation is a process of shedding the uterine lining, during which collagen in the body is significantly lost. Therefore, menstruation is a period of severe collagen deficiency, and moderate supplementation of collagen can help repair the endometrium. Moreover, collagen absorption is often more effective during menstruation.
However, moderation is important, as excessive supplementation may result in collagen not being fully metabolized, leading to waste. Individuals with specific health conditions, such as hormone-sensitive diseases (e.g., uterine fibroids), digestive system disorders, or allergies to collagen components, should avoid or use collagen supplements cautiously during menstruation to prevent worsening of their conditions or adverse reactions.
In addition to collagen supplementation, women should also focus on consuming more fresh vegetables, fruits, and other foods rich in vitamins and dietary fiber during menstruation. Additionally, adequate intake of nutrients such as iron should be ensured to maintain overall health.