Perimenopause is something every woman will go through, yet it's still one of the most misunderstood stages of our lives. Dr Holly Vaughan, GP and menopause specialist, has spent years seeing women misled by poor information. Her approach focuses on whole health, not just symptoms. Here, she explains what's happening in your body, what the research says about food and lifestyle, and when to ask for support.
Why this matters to women
Perimenopause isn't simply the time before your periods stop. It's a transition, a phase where our hormones become increasingly variable, confusing both our bodies and our minds.
80% of women experience symptoms. For some, the changes are subtle. For others, perimenopause can affect sleep, mood, concentration, energy, relationships, work and overall quality of life.
There's no single "typical" perimenopause. Your experience may be completely different from your sister's, your friend's or the woman sitting next to you at work. Understanding what's happening biologically can make this stage feel far less daunting.
What's actually happening in your body
You're born with a set number of eggs, called follicles, and with each menstrual cycle that number falls. This changes the hormonal communication between your brain and ovaries.
Your brain still thinks you're 21, but your ovaries have limited resources. That disagreement causes hormonal fluctuations, which is why periods can become irregular and why perimenopause can last for several years.
More than 30 recognised symptoms
Perimenopause has an irritating habit of refusing to stick to one symptom at a time. Symptoms include:
- Cycle changes: irregular, heavier or lighter periods. Apparently knowing when your period is coming was too much certainty to ask for.
- Temperature: hot flushes and night sweats.
- Sleep and energy: difficulty sleeping, fatigue and low energy.
- Mood: anxiety, low mood and irritability.
- Brain: "brain fog," headaches or worsening migraines.
- Intimate health: reduced sex drive, vaginal dryness and urinary symptoms.
- Body: muscle and joint pain, skin and hair changes, and shifts in body composition.
They can appear, disappear and reappear with absolutely no respect for your diary or your patience. So if you find yourself thinking, "Why don't I feel like myself?", perimenopause could be part of the picture.
What the science says
Brain fog, mood and sleep are connected
Hormonal changes interact with sleep, stress and brain function. Night sweats disrupt sleep, and poor sleep makes concentration, memory and mood harder. It can become a frustrating cycle, and research suggests that regularly sleeping less than seven hours a night can lead us to eat more the next day.
Depression, anxiety and insomnia around the menopause are common, but not every symptom is perimenopausal. Work, caring responsibilities, financial pressure and previous mental health difficulties can all play a part. As women, we're very good at explaining our symptoms away as "stress" or "getting older," but it could be more.
There's no "perimenopause diet", but patterns matter
No single diet has been proven to stop symptoms, and there's no magical food that will "balance your hormones." What helps most is a wholefood-focused diet, lower in ultra-processed foods and those high in fat and sugar, to support your heart, bones, gut and mind.
Think patterns, not perfection:
- Fibre supports digestion, keeps you fuller and can help keep blood sugar more stable. Try oats, wholegrains, beans, lentils, vegetables, fruit, nuts and seeds.
- Protein helps maintain muscle and keeps you satisfied. Try fish, eggs, yoghurt, poultry, tofu and pulses.
- Calcium supports your bones. UK sunlight is too weak in winter, so the NHS recommends a low-dose vitamin D supplement during those months.
- Home-cooked, vegetable-rich food supports heart health, as does stopping smoking and keeping alcohol within recommended limits.
Your metabolism may shift
Weight may become easier to gain, particularly around the middle, and muscle mass naturally declines with age unless resistance training is regular and intentional.
Insulin, the hormone that helps you use energy from sugar, may not work as well. But that doesn't mean every woman will develop insulin resistance or diabetes. Your healthcare professional may recommend checking your blood pressure, cholesterol or blood glucose, depending on your individual risk. HRT isn't prescribed specifically to prevent diabetes.
Do you need a blood test?
For otherwise healthy women aged 45 or over with typical symptoms, NICE guidelines recommend diagnosing perimenopause based on symptoms and cycle changes, not routine hormone blood tests. Hormone levels fluctuate so much that a single test only gives a snapshot of one day.
Blood tests are recommended for women under 40 with symptoms and infrequent or absent periods. They can also help when the diagnosis is uncertain or another condition needs investigating.
Summary: what this means for you
Perimenopause is real, biological and highly individual. No single food, supplement or lifestyle change will override it, but these foundations can support your health through the transition and beyond:
- Nourishing food with enough protein and fibre.
- Regular movement, especially resistance and weight-bearing exercise. Walking, dancing, swimming, yoga and Pilates all count. The best exercise is the one you'll keep doing.
- Protected sleep, with a consistent routine and an eye on caffeine, alcohol and screen time.
- Stress support, such as yoga, meditation, talking to people who understand, or psychological approaches.
When lifestyle measures aren't enough, evidence-based treatments, including HRT for appropriate women, are available and should be tailored to you.
When to speak to your GP
- If your symptoms are affecting your quality of life or disturbing your sleep.
- If your periods become significantly heavier, change substantially, or you bleed between periods.
- If you've gone 12 months without a period and then have any bleeding, even spotting.
- If you have menopause symptoms before 45.
Just because perimenopause is a recognised stage of life doesn't mean we have to put up with it. You deserve to have your symptoms heard, understood and taken seriously.
