“Meanwhile, higher caffeine intake was related to higher levels of another sex hormone, progesterone, the researchers report in the journal Cancer.
The findings were somewhat different among postmenopausal women. For them, greater coffee and caffeine consumption was linked only to higher levels of sex hormone-binding globulin, or SHBG. Some studies have linked higher levels of SHGB — which decreases the activity of estradiol and testosterone — to a lower risk of breast cancer in postmenopausal women, Kotsopoulos and her colleagues note.”
Author
Cari