More bad news about grapefruit
*Editor's Update July 6, 2013
Since the below information was posted, further research has indicated that the number of drugs on the market that react adversely with grapefruit has increased substantially to 43! Drugs on this list include Zocor, Lipitor, Nifediac and Afeditab. Other citrus fruits that contain "furanocoumarins" such as Seville oranges, limes and pomelos.
First it was reported that eating grapefruit can interfere with blood pressure, cholesterol, heart and a host of other medications. (This Wikipedia page is a helpful resource. It lists medicines that are affected by grapefruit juice consumption.)
Because grapefruit juice contains chemicals that can cause problems with how one's body metabolizes a drug/medicine, medicines that may be susceptible to this risk are required to have warnings in the patient information...all that fine print stuff that comes with your prescription. But many people rely upon their physician and skip the magnifying glass reading. If this sounds like you, check out the above site and do your research.
Anyway, now, a new study suggests that eating as little as ONE quarter of the juicy fruit can raise the risk of breast cancer 30% in older women. The bottom line finding was that grapefruit appears to raise levels of oestrogen--a hormone that has been linked to breast cancer. (Read an additional post by Athletic-Minded Traveler about grapefruit and estrogen.)
And this isn't just any 'ol fly by night quickie, headline grabbing study of 15 people. This study was reported in the British Journal of Cancer and was based upon a sample size of 50,000 post-menopausal women.
So if your breakfast routine includes grapefruit, check your medications and take care.