Can I reverse gynecomastia through diet, exercise, and/or medicine?
Unfortunately, for true gynecomastia, the answer is pretty much no.
Once your mammary glands have grown from exposure to estrogen, that’s it. The lack of estrogen won’t cause the breasts to shrink. With that said though, a lot of what seems to be gynecomastia, ie. high levels of adipose tissue in the breast, can be reversed through diet and exercise. If you lose fat you will lose it everywhere.
Also, some bodybuilders swear by taking anti-estrogen medication along with their steroid cycles. Some of this medicine is the same as what is taken for women with breast cancer. Some medicines decrease the steroids from aromatising into estrogen. Some medications fill up the estrogen receptor sites in the cells, thus not allowing the estrogen to take effect. There are many of these drugs. Clomid and Nolvadex are two examples.
Some people say that these medications can only be used to prevent gynecomastia. Some people say that they have had some good results in reversing it. The truth probably lies somewhere in the middle. It won’t work for severe gynecomastia so don’t even bother. If you have just developed a tiny bit of breast development, it is really just pseudogynecomastia. It might work a little. Some say that once you stop taking these medications it may return. You certainly won’t want to be taking breast cancer medicine for your whole life.