hormones
Estrogen
The primary female sex hormone that shapes fat distribution, appetite, and metabolic rate — its decline at menopause shifts fat storage toward the abdomen.
Estrogen (chiefly estradiol) regulates far more than reproduction: it supports insulin sensitivity, favours hip and thigh fat storage over visceral fat, and helps preserve lean body mass. As levels fall through perimenopause and menopause, fat redistributes to the midsection, insulin sensitivity drops, and muscle loss accelerates — shifting the calorie math rather than "destroying" metabolism outright. Resistance training, adequate protein, and conservative deficits offset most of the change; HRT can further reduce visceral-fat accumulation when clinically appropriate.
Primary Sources
- Davis SR et al. "Menopause." Nat Rev Dis Primers. 2015.
- Lovejoy JC et al. "Increased visceral fat and decreased energy expenditure during the menopausal transition." Int J Obes. 2008.