Gynecomastia is enlargement of the breast tissue in boys or men, caused by an imbalance of the hormones estrogen and testosterone. This happens especially when too much free testosterone is aromatized into estrogen. There are many ways to affect this pathway including drugs and even some supplements. If you are having issues with Gynecomastia it may be a sign of Hormone imbalance and only the RIGHT blood tests will determine if we can help, call now 1-888-908-0804 and speak to your Program Advisors, Lifestyle Concierges and Educators .