Why Perimenopause Changes Your Metabolism (And How to Work With It)

Your metabolism hasn't "given up" on you.

When weight creeps on in your 40s and 50s even though you're eating less and trying harder, it can feel personal and hopeless. I want to flip that story, because what's usually happening in perimenopause and menopause is adaptation: your body is responding to hormone shifts, muscle loss, stress chemistry, and years of dieting in the most human way possible, by trying to keep you safe.

What metabolism actually means

Metabolism is so much more than calorie burn. It includes thyroid output, insulin sensitivity, appetite regulation, and how your body decides to store fat or use fuel.

Fluctuating oestrogen can affect insulin and fat storage. Cortisol and chronic stress can drive cravings while telling the body to conserve energy. And repeated restriction can trigger adaptive thermogenesis, making weight loss feel harder over time.

The core reset priorities

Here are the priorities I see work consistently for women's health:

• Adequate protein to support lean muscle
• Regular meals to steady blood glucose
• Strength training as a non-negotiable for metabolism, cognition, and long-term bone health

We also need to guard sleep and manage stress, because without those foundations, even the best nutrition plan can stall.

If you're feeling stuck, take one bite-sized change and reach out if you want personalised direction.

Ready to work with your hormones instead of against them? Book a free Introduction call with Susie.