The use of peach (Prunus persica) for supporting or treating premenstrual syndrome (PMS) is primarily rooted in traditional medicine, particularly in East Asian practices. In Traditional Chinese Medicine (TCM), various parts of the peach tree—including the fruit, flowers, seeds, and bark—have been used for centuries to address a range of health concerns. The peach kernel (semen persicae) is sometimes employed to "invigorate blood" and "dispel stasis," which are concepts that, in TCM, relate to menstrual health and the alleviation of menstrual discomforts, including those associated with PMS.

However, the evidence supporting the use of peach specifically for PMS symptoms (such as mood swings, bloating, cramps, and irritability) is scant in scientific literature. While peaches are a source of vitamins, minerals, and antioxidants—which theoretically might have a mild benefit for general health—there is no robust clinical data demonstrating their efficacy for PMS. The traditional use is generally anecdotal or based on historical texts rather than modern biomedical research. Thus, while peach is sometimes recommended in traditional contexts for menstrual or women's health, this should not be interpreted as validated by scientific standards, and the strength of evidence remains low.

In summary, peach’s use for PMS is justified by tradition rather than scientific validation, and anyone seeking effective PMS support should consult healthcare providers and rely on treatments with proven efficacy.