Increasing testosterone naturally, and lowering estrogen is also good for women as well because estrogen is a catabolic hormone that breaks down muscle mass and leads to an increase in body fat and aromatase. Testosterone, and to a slight degree progesterone, are anabolic hormones that promote lean body mass. Testosterone is the sex hormone in both men and women.
Aromatase is an enzyme that is found in estrogen-producing cells located in the adrenal glands, ovaries, placenta, testicles, brain and fat tissue. Higher levels of aromatase in the body convert more testosterone and progesterone into estrogen.
Here is a list of natural Aromatase inhibitors
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