Fat Loss Effects of Estrogen

September 6th, 2007 by Paul Johnson

In a previous post I wrote about the anabolic effects of estrogen. You can read that post here Not only does estrogen have muscle gaining abilities, but it also can help in reducing fat. This may sound far reaching since estrogen is known for causing a bloated puffy look. One must remember that is because of increased water retention due to it increasing aldosterone, a hormone that controls sodium retention.

Estrogens according to research could help fat loss in a few major ways. Estrogens have the ability to not only reduce insulin receptor count, but also increase their insulin sensitivity at high doses. Insulin sensitivy and response is an important way to reducing fat. Estrogen also raises growth hormone levels. Growth hormone is a very potent fat burning hormone. Estrogen also can help reduce hunger during dieting due to it's role on melanin-concentrating hormone (MCH). During dieting MCH levels increase, causing increased appetite. Estrogens will block this increase in MCH.

One must keep in mind that too high of estrogen, will have the opposite effect for fat loss and muscle gain. A healthy balance of estrogen and testosterone is key to maximum muscle gains and fat loss. This is one reason why people with higher bodyfat percent usually gain more of their weight as fat. The fat cells will convert testosterone to estrogen in the body.