One of the changes many women notice in perimenopause and menopause is that their body starts storing fat differently.
The number on the scales may not change dramatically, yet the waistline does.
Clothes fit differently. The middle of the body feels softer. Fat seems to settle around the abdomen in a way it never did before.
And for many women, this feels frustrating because they haven’t suddenly changed the way they eat or stopped moving.
So why does it happen?
The answer is more complex than simply eating too much.
Hormonal change affects where fat is stored
As women move through perimenopause and menopause, oestrogen becomes more erratic and eventually declines.
Oestrogen plays a role in body fat distribution, and as levels change, there can be a greater tendency to store fat centrally around the abdomen rather than around the hips and thighs.
This matters because not all body fat behaves in the same way.
Subcutaneous fat sits just beneath the skin.
Visceral fat is stored deeper in the abdominal cavity, around internal organs.
Visceral fat is metabolically active tissue. Higher levels are associated with poorer insulin sensitivity, increased inflammation and a greater risk of metabolic and cardiovascular disease.
So when we talk about abdominal fat in midlife, this conversation goes far beyond appearance.
It becomes a metabolic health conversation.
Insulin sensitivity can change too
Hormonal changes can influence the way the body responds to insulin.
Insulin helps move glucose from the bloodstream into cells, where it can be used for energy.
When insulin sensitivity becomes reduced, the body may need to produce more insulin to manage the same amount of glucose.
Over time, this can make fat storage easier, particularly around the abdomen.
Muscle also plays an important role here because skeletal muscle is one of the main places where the body uses glucose.
As we move through midlife, gradual loss of muscle mass can reduce the amount of metabolically active tissue available to use glucose efficiently.
Again, the picture becomes bigger than body weight alone.
Gut health is part of the metabolic picture
The gut also plays an important role in metabolic health.
The gut microbiome is involved in inflammation, glucose metabolism, appetite regulation and the way the body processes and recycles hormones, including oestrogen.
During midlife, changes in hormones, diet, stress, sleep and lifestyle can all influence gut health, while changes in the gut microbiome may also affect metabolic function.
This is another reason why I prefer to look at body composition as part of a much bigger picture rather than treating abdominal fat as an isolated problem.
Sleep and stress are part of the same story
Poor sleep is common during perimenopause.
Night sweats, early waking, anxiety and hormonal changes can all interrupt sleep quality.
And poor sleep can affect appetite regulation, insulin sensitivity, energy and food choices.
Stress can add another layer.
Chronic stress affects the HPA axis and cortisol regulation, and prolonged stress may contribute to changes in appetite, blood sugar control and abdominal fat distribution.
This doesn’t mean cortisol is the sole cause of belly fat.
It means stress is one part of a much wider physiological picture.
Why “eat less, move more” often feels too simple
When women see changes around the waist, the first response is often to cut calories and increase cardio.
But midlife body composition is influenced by hormones, muscle mass, insulin sensitivity, gut health, sleep, stress, recovery and overall metabolic health.
Looking only at calories can miss what is happening underneath.
This is why I believe the conversation needs to move away from simply chasing a smaller number on the scales.
We need to look at how the body is functioning.
A broader approach to metabolic health
The aim is to understand what is driving body composition changes and support the body as a whole: nutrition, muscle, movement, gut health, sleep, stress regulation, blood sugar control and recovery.
Because visceral fat is not simply a cosmetic issue.
It can be a sign that the way your body is managing energy, blood sugar and fat storage is changing.
And that makes this an opportunity to look deeper, rather than simply eat less.
Has your waistline changed even though your habits haven’t?
If your body composition has changed during perimenopause and you’re unsure why, there may be more happening than a simple calorie imbalance.
I work with women to understand the changes happening in midlife and create a personalised approach to nutrition, strength, metabolic health, recovery and lifestyle.
Get in touch to book a consultation and let’s look at what your body needs now.
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