People often talk about what you should avoid in order to decrease your risk of breast cancer, but there are also some things you should try to get more of to support your health. Dr. Tang particularly recommends these three supplements:

CDG EstroDIM helps your body metabolize estrogen, with a potent combination of I3C and DIM. Research has found that Indole-3-carbinol (IC3) and its metabolite DIM boost estrogen metabolism as well as supporting endocrine balance. How does it work? Well, one of the "good" estrogens, estrone-2, is created when a certain compound called 3,3'-Diindolmethane (DIM) is present. It's found in foods from the brassica family, including brussel sprouts, cabbage, and broccoli. Unfortunately, when you cook these foods you eliminate most of the DIM, and eating them raw can be unpleasant. Supplementing with DIM helps ensure that your body can create enough of this healthy, protective form of estrogen.

Additionally, this supplement contains calcium D-glucarate (CDG), which helps modulate glucuronidase activity. This helps aid the detoxification process, ensuring that bad estrogen metabolites are successfully eliminated from the body. 

Studies have shown that low levels of Vitamin D are associated with an increased risk of breast cancer, particularly among post-menopausal white women (who due to their age, sex, and race are already in a high-risk category for the disease). A 2014 study in the journal BMC Cancer looked at white, African American, native Hawaiian, Japanese, and Latino women, and found that for white women, a 20ng/ml increase in 25-hydroxyvitamin D3 was associated with a 72% decreased risk in breast cancer. Maintaining an appropriate level of Vitamin D -- regardless of your racial or ethnic background -- is an important way to protect yourself. 

We've long been told that Omega-3's are an excellent supplement for supporting many aspects of our health, including reducing inflammation and helping maintain the length of telomeres. Studies have also shown that levels omega-3's may be related to breast cancer risk. A longitudinal study from Seattle's Fred Hutchinson Cancer Center published in 2012 found that women who supplemented regularly with fish oil -- a common source of omega-3's -- had one-third less incidence of breast cancers than those who did not. That said, many are hesitant to take fish oil due to concerns about toxins. A good alternative is krill oil. Krill are tiny, shrimp-like organisms who are a great source of omega-3's. Studies also suggest that absorption of omega-3's may actually be better from krill oil because of the phospholipids that act as carriers for the omega-3's.