If you've reached your forties or fifties and suddenly find that losing weight feels almost impossible, you're certainly not alone. Many women discover that the strategies which worked for years no longer seem effective during perimenopause and menopause. Despite eating well and staying active, the scales may refuse to move, energy levels can fall and cravings often increase.

This isn't simply about getting older or lacking willpower. It is largely driven by hormonal changes that affect the way your body responds to insulin.

What is insulin?

Insulin is a hormone produced by the pancreas. Its primary role is to move glucose (sugar) from your bloodstream into your body's cells, where it can be used for energy.

After eating, your blood sugar naturally rises. Insulin is released to help transport that glucose into your muscles, liver and other tissues. Under normal circumstances, this process keeps blood sugar levels within a healthy range while providing your body with the fuel it needs.

What is insulin resistance?

Insulin resistance occurs when your body's cells become less responsive to insulin.

To compensate, your pancreas produces more insulin in an attempt to achieve the same effect. Over time, this can lead to consistently higher insulin levels circulating within your body.

Higher insulin levels encourage the body to store fat rather than burn it, making weight management considerably more challenging.

Why does menopause affect insulin resistance?

During perimenopause and menopause, levels of oestrogen gradually decline.

Oestrogen plays a significant role in regulating how the body responds to insulin. As these hormone levels change, many women become naturally more insulin resistant.

Other common menopausal symptoms can make the situation even more difficult, including:

• Poor sleep

• Increased stress

• Reduced muscle mass

• Lower physical activity due to fatigue or joint pain

• Changes in body composition

These factors work together, making weight loss slower than it was previously.

Common signs of insulin resistance

Many women experience several of these symptoms:

• Difficulty losing weight

• Weight gain around the abdomen

• Increased hunger between meals

• Strong sugar or carbohydrate cravings

• Afternoon energy crashes

• Feeling tired after eating

• Brain fog

• Higher fasting blood glucose levels

Having one or two of these symptoms does not necessarily mean you have insulin resistance, but they may indicate it's worth discussing with a healthcare professional.

Why calorie restriction isn't always enough

Many people believe weight loss is simply a matter of eating fewer calories.

Whilst calorie balance remains important, hormones influence how your body stores and uses those calories.

When insulin levels remain elevated, your body is more likely to prioritise fat storage and less likely to access stored body fat for energy. This means that extremely restrictive dieting often becomes both frustrating and unsustainable.

Instead of focusing solely on eating less, it's often more effective to improve your body's sensitivity to insulin.

Supporting healthy insulin function

The good news is that insulin sensitivity can often be improved through consistent lifestyle habits.

These include:

• Choosing protein-rich meals

• Eating plenty of fibre from vegetables, fruit and whole foods

• Limiting highly processed sugary foods

• Building and maintaining muscle through resistance exercise

• Walking regularly throughout the week

• Prioritising quality sleep

• Managing stress through relaxation techniques or mindfulness

• Maintaining a healthy body weight over time

Small, sustainable improvements usually produce better long-term results than short-term restrictive diets.

A balanced approach

Every woman experiences menopause differently.

Some women notice only minor changes, whilst others find that hormonal changes have a significant impact on their weight, energy and overall wellbeing.

Understanding what is happening inside your body allows you to work with your hormones rather than against them.

If weight loss has become more difficult than it once was, remember that this is not a personal failure. Your body is adapting to major hormonal changes, and with the right knowledge, nutrition and support, it is entirely possible to improve your health and wellbeing.

Key Takeaways

✔ Menopause can increase insulin resistance due to declining oestrogen levels.

✔ Higher insulin levels encourage fat storage and make weight loss more difficult.

✔ Sleep, stress, muscle loss and inactivity can all contribute to worsening insulin resistance.

✔ Improving insulin sensitivity through nutrition, movement and healthy lifestyle habits is often more effective than severe calorie restriction.

✔ Sustainable habits produce the best long-term health outcomes.