What role does diet and baby powder play in the development of fibroids and ovarian cancer? 
If you randomly select a group of women and ultrasound their uterus, most of them have fibroid tumors by age 50—and by most, I mean more than 80 percent of black women and nearly 70 percent of white women. As you can see at 0:23 in my video Talcum Powder and Fibroids, half of the white women in study already had fibroids by their early 40s, while half of the African-American women had them even early, by their mid-30s. 
After getting over the shock of how widespread fibroids are, the next question becomes, Why the racial disparity? Is it “diet, stress, [or] environmental exposures”? Perhaps the reason could offer a clue as to what causes fibroids. For example, African Americans tend to have lower intakes of fruits and vegetables, and fruits and vegetables appear protective against fibroids. (Citrus are particularly protective, though apparently not just citrus juice, as found in the Black Women’s Health Study.)