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Chaste Tree Berry | Vitanica 240 mg 60 caps Containing the best of both worlds, our chaste tree berry contains the standardized extract and the pure dried powder of the whole fruit of the Chaste tree plant. Vitex has been studied for its properties of regulating the menstrual cycle, premenstrual syndrome, infertility and hot flashes. Chaste tree berry is best known for its use in a variety of menstrual irregularities. Chaste tree has the ability to stimulate the pituitary gland to increase leutinizing hormone (LH) secretion. This then leads to a greater production of progesterone by the corpus luteum. Chaste tree then results in a shift in the ratio of estrogen to progesterone, in favor of progesterone. This ability of chaste tree to modulate progesterone levels in the body is an indirect effect and not due to progesterone in the plant nor due to a direct ability of chaste tree to bind to progesterone receptors. This mechanism of action accounts for its effectiveness in correcting irregular menses, premenstrual menses, heavy menses, lack of ovulation, and even infertility. Chaste tree also modulates the secretion of prolactin from the pituitary gland and can actually inhibit prolactin release by the pituitary gland, particularly under stress.
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