Estrogen Suppressant supplements prevent higher than normal estrogen levels can lead to several physiological problems. Higher than normal estrogen levels can cause a condition called gynecomastia (gyno). Gyno is the growth of hard nodular breast tissue under the nipple. This condition can greatly diminish the cosmetic appearance of pectoral muscles.  High estrogen can also cause excessive sodium and water retention. This will result in a bloated, puffy appearance in your muscle, that is why we always recommend one of our Discount anti estrogne supplements.