This product has an increased ratio of 2-OHE:16α-OHE1, which is associated with a reduced risk of invasive breast cancer risk in premenopausal women.3 Several natural products found in EstroVantage EM support this latter concept including DIM, and indole 3 carbinol (I3C). A human study has confirmed that daily supplementation with 300 mg of I3C daily for 12 weeks significantly increased the 2-OH-estrone: estriol metabolite ratio without notable adverse events.4 Other compounds in EstroVantage EM, including calcium-d-glucarate, inhibit beta-glucoronidase activity, allowing for the excretion of estrogen before reabsorption.5 It is estimated that a 4% calcium glucarate supplemented diet inhibits beta-glucuronidase activity by 70%.6