SOY ISOFLAVONES are a class of phytoestrogens – plant-derived compounds with estrogenic activity. Many studies have found that moderate consumption of soy has the potential to protect against breast cancer. Additionally, genistein, the main isoflavone in soy, has been shown to protect against cancer by interfering with hormone-signaling pathways and impacting genes involved in cancer cell reproduction and death. In a study conducted by the National Cancer Institute, researchers found that girls who eat soy during childhood and adolescence have a significantly lower risk of breast cancer in adulthood. Other studies suggest that the consumption of soy foods containing genistein during adulthood protect against both premenopausal and postmenopausal breast cancer. While many studies show positive benefits of soy isoflavones, there are conflicting results, so check with your health-care provider and always opt for organic, non-GMO soy products.
VITAMIN D protects against breast cancer and other cancers, and observational studies show that taking 2,000 IU of vitamin D3 per day (along with keeping sunlight exposure at a very moderate level) could cut breast cancer risk in half. In a German study, women with the highest levels of vitamin D had a 70% reduction in their risk; the effects were more pronounced in women who never used hormone therapy. Other studies show vitamin D combined with calcium reduced breast cancer risk in premenopausal women and could be even more protective against aggressive breast tumors.
CURCUMIN, the active compound in turmeric, has anti-inflammatory properties, may inhibit the growth and spread of breast cancer cells and may promote cancer cell death. It also increases the activity of natural killer cells and prevents breast tumors from escaping detection by the immune system. Curcumin also appears to be effective against both estrogen-positive and estrogen-negative breast cancer cells, and it may act on breast cancer cells that are resistant to chemotherapy.