Menopause Weight Gain: Why It Happens & How to Lose It After 40

Why You're Gaining Weight After 40 (And What Actually Works)

If it feels like your body changed overnight after 40, you're not imagining it.

Many women find that the same diet and exercise routine that worked in their 20s and 30s suddenly stops working during perimenopause and menopause. Weight begins to settle around the stomach, cravings increase, muscle mass declines and losing even a few kilos can feel almost impossible.

The good news? It's not simply about eating less.

Understanding what's happening inside your body is the first step towards achieving lasting weight loss.

Why Does Menopause Cause Weight Gain?

Several hormonal and metabolic changes occur during perimenopause and menopause that make weight gain more likely.

Declining oestrogen changes where fat is stored

As oestrogen levels fall, your body becomes more likely to store fat around your abdomen instead of your hips and thighs.

This type of visceral fat is more closely linked to insulin resistance, inflammation and increased health risks.

Muscle naturally declines after 40

Women lose muscle mass every decade after 30, and this accelerates during menopause.

Less muscle means:

  • A slower metabolism
  • Fewer calories burned at rest
  • Greater difficulty maintaining a healthy weight

This is why adequate protein becomes increasingly important.

Increased insulin resistance

Hormonal changes can make your body less responsive to insulin.

This means:

  • Higher blood sugar spikes
  • More cravings
  • Increased fat storage
  • Greater hunger between meals

Poor sleep increases hunger hormones

Night sweats, frequent waking and insomnia are common during menopause.

Poor sleep increases the hormone ghrelin (which stimulates appetite) and reduces leptin (which signals fullness), making it much harder to resist cravings.

Stress and cortisol

Many women juggle careers, teenagers, ageing parents and changing hormones simultaneously.

Chronic stress raises cortisol, which has been associated with increased abdominal fat storage and emotional eating.

Why Traditional Diets Often Fail During Menopause

Extreme calorie restriction often backfires.

Very low-calorie diets can:

  • Reduce muscle mass
  • Slow metabolism further
  • Increase hunger
  • Lead to rebound weight gain

Instead, sustainable weight loss should focus on preserving muscle while reducing body fat.

How to Lose Weight During Menopause

Prioritise Protein

Aim for around 25 to 35 grams of protein at each meal to support muscle, improve fullness and maintain metabolism.

Increase Fibre

Most Australian women consume far less fibre than recommended.

Fibre helps:

  • Keep you feeling fuller for longer
  • Support gut health
  • Improve blood sugar control
  • Reduce cravings

Resistance Training

Building muscle is one of the most effective ways to increase metabolic rate during menopause.

Even two to three sessions each week can make a significant difference.

Walk More

Walking remains one of the best forms of exercise for women over 40.

Combined with strength training, it helps improve insulin sensitivity and increase daily calorie expenditure without placing excessive stress on the body.

Prioritise Sleep

Improving sleep can make healthy eating feel significantly easier by reducing hunger hormones and supporting recovery.

Why Women Over 40 Choose MyPause Slim Down Shake

Unlike many meal replacement shakes, Slim Down Shake was developed specifically for women over 40 experiencing hormonal weight gain.

Each serve contains:

  • 30g plant protein to support lean muscle
  • 7g fibre to reduce hunger
  • Essential vitamins and minerals
  • Low sugar
  • Nothing artificial
  • Made in Australia

Women using Slim Down Shake as part of their weight loss program lost an average of 4.6kg in 30 days, while reporting improved fullness and sustained energy.