Does anybody know if cranberry juice or cranberry pills have any effects on estrogen..does it raise it or lower it? I believe I read somewhere that grapefruit juice has an effect on estrogen...thanks Tina
Grapefruit may cause a woman who takes birth control pills or utilizes hormone replacement therapy to higher than desired levels of estrogen in her bloodstream, according to Graedons' Guide to Grapefruit Interactions. The higher estrogen levels can lead to side effects including breast tenderness and nausea. Long-term exposure to high estrogen levels is associated with an increased breast cancer risk.
Read more: http://www.livestrong.com/article/108077-estrogen-grapefruit/#ixzz1BKhRnLZn>>
The body breaks down estrogens to get rid of them. Grapefruit juice seems to decrease how quickly the body breaks down estrogens and increase how much estrogen the body absorbs. Drinking grapefruit juice while taking estrogens might increase estrogen levels and side effects associated with estrogen such as breast cancer.
Some estrogen pills include conjugated equine estrogens (Premarin), ethinyl estradiol, estradiol (Climara, Vivelle, Estring), and others.>>
Thanks for posting those websites Calypso. I viewed al sites. Interesting though, many ladies, have been consuming grapefruits.....like my Mother has been all her life, grapefruit daily. Personally that is one fruit I don't care for, horrible taste.
In vitro and in vivo studies have shown that estrogens are metabolized partially by cytochrome P450 3A4 (CYP3A4). Therefore, inducers or
inhibitors of CYP3A4 may affect estrogen drug metabolism. Inducers of CYP3A4 such as St. John’s Wort preparations (Hypericum perforatum),
phenobarbital, carbamazepine and rifampin may reduce plasma concentrations of estrogens, possibly resulting in a decrease in therapeutic
effects and/or changes in the uterine bleeding profile. Inhibitors of CYP3A4 such as erythromycin, clarithromycin, ketoconazole, itraconazole,
ritonavir and grapefruit juice may increase plasma concentrations of estrogens and may result in side effects.
It is well known that grapefruit juice interacts with many meds. One can do a drug check and will find that the only interaction is with grapefruit juice.
Would also like to remind everyone that Mrs Dukes was asking about cranberry juice and estrogen. Appreciate the links and all about grapefruit juice, but that wasn't the question. Let's keep our replies directed to the question that the OP asks.
(((Tina))) I have not heard about any interactions with estrogen and cranberry juice. Did you read or hear something?