Progesterone & perimenopause

When it comes to menopause, oestrogen gets most of the attention, while testosterone has started to make a name for itself. But what about progesterone? This hormone might not be the loudest in the hormonal orchestra, but when it starts to dip during perimenopause, you definitely notice. It’s the quiet hero that keeps chaos in check—and when it takes a nosedive, your body decides to throw a full-on drama fit.

What does progesterone do?

Think of progesterone as your body’s natural calming agent. It’s like the chill, level-headed best friend that balances out oestrogen’s sassy spontaneity. Here’s what it does:

• Regulates menstrual cycles: Keeps periods predictable – until perimenopause crashes the party.
• Supports pregnancy: Maintains a healthy pregnancy, but levels can drop significantly during perimenopause.
• Calms your nervous system: Works like nature’s chill pill, promoting relaxation and reducing anxiety.
• Promotes sleep: Boosts production of GABA, a neurotransmitter that helps you relax and sleep deeply.
• Balances oestrogen: Prevents oestrogen from running wild and causing unwanted symptoms.

When progesterone levels drop, it’s like the calming influence leaves the party, and chaos ensues.

Symptoms of low progesterone

When progesterone takes a nosedive, your body can feel like it’s pulling every annoying trick out of the hormonal hat. Here’s what you might experience:

1. Irregular or heavy periods: Your cycle becomes unpredictable – a roulette of longer, shorter, heavier, or even lighter periods.
2. Sleep problems and insomnia: Tired but can’t fall asleep? Wake up at 3 AM for no reason? Your brain decides to narrate your life story at odd hours.
3. Mood swings and anxiety: One minute you’re calm, the next you’re irrationally irritable or crying over burnt toast.
4. Headaches and migraines: Your head pounds like it’s trying to send you a message.
5. Breast tenderness: Sore, swollen breasts that make you question if they’re plotting against you.
6. Water retention and bloating: Feeling puffy and bloated, and trying on 4 different sizes of jeans.
7. Brain fog and trouble concentrating: Walking into rooms and forgetting why you’re there.
8. Weight gain and fatigue: Your metabolism slows down, and fat distribution targets the belly, hips, and thighs.

Causes of low progesterone

While perimenopause and menopause are the usual suspects, other factors could include:

• Stress overload: Your body converts progesterone to cortisol under stress.
• Poor nutrition: Deficiencies in vitamins B6 and C affect progesterone production.
• Thyroid issues: Hypothyroidism can interfere with hormone production.
• PCOS (Polycystic Ovary Syndrome): Can lead to low progesterone and irregular cycles.
• Oestrogen dominance: Too much oestrogen leaves progesterone struggling to keep up. If you decided to get HRT you’ll need both oestrogen and progesterone.

How to boost progesterone naturally

If your body is screaming for more progesterone, don’t worry – you’re not stuck in this hormonal horror show. Here are some ways to boost your levels and feel more balanced:

1. Manage stress: Meditation, yoga, and even a good laugh can help reduce cortisol levels.
2. Support your diet: Load up on foods rich in:
   • Vitamin B6: Chicken, fish, bananas, and potatoes.
   • Magnesium: Nuts, seeds, dark leafy greens.
   • Zinc: Beef, pumpkin seeds, chickpeas.
   • Healthy Fats: Olive oil, avocado, and fatty fish.
   • Or look at supplement options
3. Get enough sleep: Prioritize quality rest—7–9 hours a night can help balance hormones.
4. Exercise smart: Low-impact activities like walking, dancing, and Pilates reduce stress without overtaxing your body.
5. Herbal helpers: Consider natural options like chasteberry, maca root, and red raspberry leaf – consult your healthcare provider first.
6. Hormone Replacement Therapy (HRT): For severe symptoms, HRT might help – talk to your doctor about the pros and cons.

Final Thoughts: give progesterone some love!

When progesterone drops, sleep suffers, stress rises, and your nervous system can feel permanently on edge. Perimenopause can feel like hormonal chaos – and some days it absolutely is – but there’s still biology behind it. With the right habits, training, and medical support where needed, things can start to feel manageable again.

This article is for general information only and is not intended medical advice. Everyone’s experience of perimenopause and menopause is different. Where supplements or treatments are mentioned, evidence can be mixed and what helps one person may not help another. Always check with a healthcare professional, especially if you have health conditions or take medication.

Last reviewed: Feb 2026
Next review due: August 2026