Why should you add anti-estrogen foods into your diet? Let’s just start by stating that multiple benefits burst out of these foods and into your cells to help you heal from breast cancer, decrease its recurrence, and aid in reducing the risk of it occurring in the first place. Since estrogen feeds and fuels 80 percent of all breast cancers via estrogen binding to an estrogen receptor on the cell’s surface, the goal of hormone therapy is to reduce estrogen levels in the body (like the aromatase inhibitors do) and to keep it out of the receptors (like tamoxifen does). Certain foods also have anti-estrogen properties and can either reduce the production of estrogen, and/or block estrogen’s binding to receptors. If you have (or had! or don’t want!) an estrogen-driven breast cancer, make sure you eat these anti-estrogen foods every day because they can work alone and/or alongside your medication to reduce the odds of cancer cell formation, growth and spread.
Whole foods made from soybeans contain phyto (plant) estrogen compounds called isoflavones. When consumed in their whole food form (we’re not talking supplements or fake meat products with soy protein isolate here), isoflavones behave as a very weak form of estrogen on “ alpha” estrogen receptors in the body (with 1/10th to 1/100th the signaling power of your real deal estrogen); so instead of stimulating the growth of cancer, when isoflavones bind to alpha estrogen receptors, they block the ability of estrogen to bind and send signals to the cancer cell to multiply and divide. When isoflavones bind to “beta” estrogen receptors, guess what happens? They act as strong anti-estrogens by shutting alpha down, and by going into fat cells to shut the estrogen-making aromatase enzyme down, thereby lowering estrogen levels.