Excess estrogen, also known as estrogen dominance, is a condition where there is an imbalance of estrogen to progesterone in the body. To reduce excess estrogen, reduce your exposure to estrogen-like compounds, such as xenoestrogens and avoid consuming too much soy and alcohol. Incorporating healthy fats such as avocado, coconut oil, and olive oil into your diet, as these can help to balance hormones. Regular physical activity can help to improve overall hormone balance.