During menopause, the body's production of hormones changes. The ovaries gradually produce less progesterone and oestrogen. In the first phase of menopause, progesterone levels often fall faster than oestrogen levels. This can lead to a situation where oestrogen is relatively dominant, which is also known as oestrogen dominance.
Oestrogen plays a role in fat storage. When oestrogen is relatively dominant compared to progesterone, this can affect how the body stores fat. This can play a role in weight gain during this phase, usually in combination with other factors such as lifestyle and changes in body composition.
In addition, where fat is stored changes. Due to the drop in oestrogen (oestradiol), fat storage more often shifts from the hips and thighs to the abdomen. Belly fat can play a role here: fat tissue can produce new oestrogens from testosterone and thus help to compensate for hormonal fluctuations.
Later in menopause, oestrogen levels drop further. This can be associated with a loss of muscle mass. Because muscle tissue uses more energy than fat tissue, daily energy expenditure can decrease as a result. If your eating pattern remains the same, this can contribute to further weight gain.
Many women experience multiple menopausal symptoms at the same time during this period. Weight gain can be accompanied by symptoms such as poor sleep, stiff or painful joints, and a feeling of anxiety or being on edge.