Most men work hard to build their biceps and get toned abs. But sometimes, despite working hard, some may experience the growth of their breasts. This a medical condition called gynecomastia, which is usually triggered by high levels of estrogen and low levels of testosterone. It can be an embarrassing problem. This is not a serious condition but can sometimes cause pain in the breasts and tenderness. Some men may also notice a discharge from their breasts. Certain health conditions, medications and substance abuse may also contribute to this problem. Gynecomastia is usually seen in adolescence and the elderly. It usually goes away on its own. If it does not, you may need medical help or even surgery. Some foods are also known to cause this problem. By avoiding these foods, you may be able to prevent gynecomastia. Here we list a few such foods.