Menopause and Weight Loss

Many women associate menopause or the use of hormone replacement therapy with weight gain. But what are the facts? And what can you do about it?

In both women and men, there is an increase in Body Mass Index (BMI) with age, with the peak BMI occurring between 50 and 59 years of age (1). Many women claim that this weight gain is caused by menopause, however research doesn't support these claims. Women gain total body weight at a linear rate from age 35 - 65, a trend that is not related to loss of ovarian hormones or their subsequent replacement (2).

Menopause results in body composition changes that could indirectly lead to weight gain. During the menopausal years there is a shift in the distribution of fat from the traditional hourglass figure of the younger woman to a more central deposition in the abdomen.

These changes in fat distribution are independently associated with an increased risk of developing hypertension, abnormal lipid profiles, Type II Diabetes and cardiovascular disease (3). In addition to the change in the distribution of body fat, there is more body fat and less muscle mass. This may decrease resting metabolic rate, which in turn results in weight gain (4).

What's the best advice for women dealing with weight gain in their menopausal years?

Exercise. Try walking at a moderate intensity for at least 30 minutes a day (in 10 - 30 minute bouts) and partake in bi-weekly resistance training sessions. This prescription is supported by a study that demonstrated numerous health benefits for exercise in menopausal women, including loss of abdominal fat and overall body fat (5).

References:
1. Kuczmarski RJ, Flegal KM, Campbell SM, Johnson CL. 1994, 'Increasing prevalence of overweight among US adults, A National Health and Nutrition Examination Survey 1960-1991' Journal of the Americal Medical Association, 272:205-11
2. Davies KM, Heaney RP, Recker RR, Barger-Lux MJ and Lappe JM. 2001, 'Hormones, Weight Change and Menopause' International Journal of Obesity, 25:874-879
3. Sturdee D, MacLennan A. 2007, 'The weight problem', Climacteric, 10:2
4. Smith K. 2005, 'Exercise Can Help Control Body Changes During Menopause', Healthcare, Food and Nutrition, 22(10)10-11
5. Asikainen T, Kukkonen-Harjula K, Miilunpalo S. 2004, 'Exercise for Health for Early Postmenopausal Women', Sports Medicine, 34:753-778