It’s definitely not fair. Women tend to gain about 10-15 pounds on average—from 3 to 30 pounds is the typical range—during and after menopause. And because our entire metabolic mechanism is different now, that weight is blessedly hard to take off.
Weight gain during menopause isn’t totally related to “the change.” Lifestyle, genetics, and, yes, hormonal fluctuation all play their respective roles, for better or for worse. But the weight goes on, and the way that happens is different from weight gain in previous years. It accumulates slowly around the abdomen, giving you the body shape of an apple, and it’s harder than ever to lose.
In order to effectively tackle this unsettling turn of events and to grasp why the things you did before aren’t working now, it helps to understand the underlying mechanism.
For one thing, muscle mass, which is an efficient burner of calories, slowly decreases with age. Now, even your resting metabolism (when you aren’t active) is lower. Loss of estrogen compounds this effect. Studies of lab animals suggest that estrogen has a regulating effect on appetite and weight gain. Animals with lower estrogen levels ate more and moved less.
When the ovaries stop producing estrogen, fat cells tend to take over. Ovaries produce estradiol, a “premium” estrogen; fat cells produce estrone, which is a weak, inefficient estrogen. This hormonal change increases the body’s efficiency at depositing fat, especially, we find, around the abdomen.
Now that you understand the biology behind weight gain, you can see why we need to change up the paradigm if we want to control our weight and maintain a healthy, active post-menopausal lifestyle.