15/03/2026
Weight Gain in Perimenopause (It’s Not Just About Willpower)
If your body suddenly feels different…
If the weight seems to settle around your middle…
If the things that used to “work” no longer do…
You’re not imagining it.
Perimenopause changes the way your body manages energy.
Here’s what’s happening behind the scenes.
1. Insulin Sensitivity Shifts
During perimenopause, fluctuating estrogen can affect how sensitive your cells are to insulin.
This means your body may:
• Store glucose more easily as fat
• Experience more blood sugar highs and lows
• Feel stronger sugar or carb cravings
Stable blood sugar becomes much more important during this stage.
2. Muscle Mass Naturally Changes
From our late 30s onward, muscle mass gradually declines.
Muscle is metabolically active tissue — it helps burn energy and stabilise blood sugar.
When muscle mass decreases:
• Metabolism slows slightly
• Fat storage becomes easier
• Strength and recovery change
This is why strength-based movement becomes more important than endless cardio.
3. Stress Hormones Play a Bigger Role
Perimenopause also makes the nervous system more sensitive to stress.
When cortisol (our stress hormone) stays elevated:
• Fat storage increases — especially around the abdomen
• Blood sugar becomes less stable
• The body prioritises survival over fat burning
Pushing harder with intense exercise or constant dieting can sometimes make this worse.
4. Inflammation Can Increase
Hormonal fluctuations can increase low-grade inflammation in the body.
Inflammation can:
• Disrupt metabolic signalling
• Increase fluid retention
• Make weight loss feel much harder
This is why supporting the body — rather than fighting it — becomes so important.
The Most Important Thing to Understand
Weight gain in perimenopause is not a failure.
It’s often a signal from the body that the strategy needs to change.
More support.
More regulation.
More nourishment.
Less punishment.
When we work with the body instead of against it, things start to shift again.
—
If your body feels different lately, you’re not alone.
And there are ways to support it through this transition. 🌿