Agnuside is a glycoside compound primarily found in the seeds of Vitex agnus-castus, commonly known as chaste tree. It is known for its potential health benefits, particularly in women's health, where it may help regulate menstrual cycles and alleviate symptoms of premenstrual syndrome (PMS). Chemically, agnuside consists of a flavonoid aglycone linked to a sugar moiety, which contributes to its solubility in alcohol and moderate solubility in water. The compound exhibits antioxidant properties and has been studied for its effects on hormonal balance. In culinary contexts, while not a spice itself, it is associated with herbal remedies and supplements.