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5 Things You Should Know About Women’s Fat Cells

Men and women have different kinds of fat. For example, women generally have more fat cells than men, but that does not make them less healthy. Together with obesity researcher Anne Loft, we take a closer look at what sets women’s fat cells apart.

By Birgitte Svennevig, , 6/11/2025

 1: Sex hormones shape how fat is stored

Our genetic makeup influences how excess fat is distributed in the body. But hormones — especially the sex hormones — also play a decisive role. After puberty, fat begins to accumulate differently in women and men. Women tend to store excess fat just beneath the skin, particularly around the thighs, hips and buttocks.

Men, on the other hand, more often store fat deeper in the abdominal cavity. This type of fat is associated with a higher risk of cardiovascular disease, high blood pressure and type 2 diabetes. Before menopause, women generally have a lower risk of these diseases.


2: Menopause brings another shift 

When women reach menopause, estrogen levels drop. This hormonal shift often causes fat distribution to change: fat begins to accumulate more around the abdomen, resembling the typical male pattern. As a result, a woman’s risk of cardiovascular disease increases after menopause.

Fakta om emnet

More obese people

By 2040, 30.8% of Danish men and 32.6% of Danish women are expected to be living with severe obesity.

The highest prevalence will be among those aged 45–59.

The lowest prevalence will be among those aged 16–29.

Source: National Institute of Public Health, 2024

3: Women's bodies need extra energy reserves

Most fat cells are formed during childhood and early adolescence. There is a continuous turnover of fat cells, with approximately 10% being renewed each year, without any significant change in the total number. When we gain weight and fat stores expand, the primary cause is that the fat cells grow larger—not that we produce more of them. However, individuals with severe obesity can also form new fat cells, and this is actually considered a “healthier” way to gain weight.

Women generally have more fat cells than men, which means they more often have a higher body fat percentage, and women’s fat cells can often become larger than men’s. This has evolutionary roots and ensures that the female body has energy reserves for pregnancy and breastfeeding.


4: Liposuction does not prevent future weight gain

Here’s a fact relevant to both men and women: Liposuction removes fat cells from the body, thus reducing the number of fat cells. But the remaining cells can still expand. This means fat mass can increase again if calorie intake exceeds the body’s needs — even after fat removal surgery.


5: Women's fat cells produce more leptin

Fat cells release hormones that help regulate appetite, fertility and metabolism. Women’s fat cells produce higher amounts of the hormone leptin than men’s. Leptin is an appetite regulating hormone that travels through the bloodstream to the brain and signals that the body is full. Yet women do not necessarily feel fuller than men. Instead, the higher leptin levels help support fertility, hormonal balance and the energy demands of pregnancy.


Meet the researcher

Anne Loft is an associate professor and head of the Loft Group at the Department of Biochemistry and Molecular Biology. She studies adipose tissue, and her research group investigates how different types of fat depots influence the risk of developing obesity‑related diseases.