Look past the scale: take charge of your body composition

If the scale has been running your mornings, here is some good news: you have been tracking the wrong thing. Weight tells you very little about what is actually happening over the menopause transition and even less about your health.

Body composition tells you everything. The moment you start paying attention to that instead, you stop feeling at the mercy of a number and start holding something you can act on.

What is actually changing

Muscle becomes a harder to hold onto and fat begins moving inward around the organs (visceral fat). The slow weight gain that many women notice in midlife is mostly down to ageing, not menopause itself. However, what menopause drives is the change in composition: where your fat sits, and how much muscle you lose.

That is exactly why the scale, which only ever sees total weight, misses the part that matters most.

The facts about muscle loss: Averaged across the research, women carry less lean mass as they move through the transition: around 2.5% less by perimenopause and close to 6% less by the postmenopausal years, compared with premenopausal women.

Much of that gap reflects normal ageing happening at the same time as menopause, not menopause alone, and the scans used to measure it capture lean mass rather than muscle exactly. What is consistent is the timing: the loss tends to be fastest during the perimenopausal years themselves, which makes this the window to act in.

The fat change is the one to watch. Fat gain accelerates around this time, but more telling is where it goes. Using body scans, researchers found postmenopausal women carried about 49% more deep abdominal fat than premenopausal women, a difference that held even after accounting for age and total body fat. The fat can move inward even when the number on the scale stays the same.

Why this matters for your health

This is where it stops being about appearance and starts being about your future. Cardiovascular disease is the leading cause of death in women, and the rate of cardiac events climbs around menopause. The fat that gathers deep in the abdomen is not quiet padding. It is metabolically active, and it is closely linked to insulin resistance, less favourable cholesterol, higher blood pressure, and a greater risk of type 2 diabetes and heart disease.

Muscle matters here too. It is where much of the glucose from your meals is taken up and used, so holding onto it helps keep your blood sugar steady. Losing lean mass and gaining visceral fat push in the same unhelpful direction, which is why the two together matter more than either alone.

The striking part is that this risk does not wait for the scale to move. In one study that followed women for five years, total weight barely changed, yet fat redistributed toward the abdomen, blood pressure rose, and a key marker of harmful cholesterol particles climbed with it. Even among women at a normal weight, carrying that excess fat around the middle is linked to a higher risk of dying from heart disease. A steady number on the scale is simply not the same as steady health.

For much of your life, storing fat lower on the body, on the hips and thighs, offers a measure of protection. As oestrogen falls and storage shifts to the middle, that protection fades, and cardiometabolic risk tends to climb with it.

You have more control than the scale suggests

Here is the part worth getting excited about.

Researchers describe perimenopause as the single most opportune window for lifestyle change, because this is when the right habits do the most work.

Visceral fat is among the most responsive fat to what you do, with regular movement, and resistance training in particular, linked to carrying less of it. You can actively rebuild muscle at any age.

You are not a passenger in this. You have real leverage. You simply have to aim it at the right target. Not for vanity, but for health.

Where to start

1.    Change the question. Swap “what do I weigh” for “what am I made of.” A DEXA scan gives you a baseline: your lean mass, your fat, and an estimate of the visceral fat around your organs, using validated methods. Its repeat measurements vary by only around 2%, so it is reliable enough to track real change. Repeat it about every six months at the same clinic so the results compare properly. Bioimpedance scales are a cheaper and useful alternative, though less precise and without the same visceral fat detail.

2.    Build and protect your muscle. Treat strength training as essential rather than optional and eat enough protein to support it (about 1.2-1.6g/kg ideal body weight). Strength training protects your bones at the same time.

3.    Eat and move for the deep fat. Regular activity genuinely shifts visceral fat, and eating patterns rich in whole grains, vegetables, fruit, nuts and olive oil, with fewer sugary drinks (yes, less alcohol), are linked to less visceral fat too. Your effort pays off where it counts for your health, even on the days the scale will not move.

The number on the scale was never the full story. Your strength, your muscle, and where your body stores fat is what shapes how well you live in the decades after menopause. Start measuring those and you stop chasing a number that cannot help you and start building the strength that can.

Key sources: Karaflou M, Goulis DG. Body composition analysis: a snapshot across the perimenopause. Maturitas. 2024;180:107898 (fat redistribution and cardiometabolic risk). Menzies C, Bowtell R, Shur N, Brook MS. Menopause, female sex hormones, skeletal muscle mass and muscle protein turnover in humans. J Cachexia Sarcopenia Muscle. 2026;17:e70232 (skeletal muscle). The intra-abdominal fat figure is from Toth et al. (2000).