If you’ve been feeling “off,” flat, foggy, anxious, or not quite like yourself, low oestrogen might be part of the picture.
Oestrogen is one of the most powerful hormones in the female body , and when levels drop (or fluctuate wildly, as they do in perimenopause), the effects can ripple through every system.
In this blog, we’ll look at:
- The wide-ranging signs of low oestrogen
- Why oestrogen matters for your brain, bones, mood, and metabolism
- What causes low oestrogen in perimenopause and beyond
- How stress, under-eating, thyroid issues, and the pill can affect your levels
- How to support your body naturally
Let’s dive in
What Oestrogen Actually Does in the Body
We tend to think of oestrogen as a “reproductive hormone,” but it’s far more than that. You have oestrogen receptors in every single cell of your body , including your brain, bones, muscles, skin, heart, eyes, and even your blood vessels.
Oestrogen supports:
- Brain function, memory, and mood
- Body temperature regulation
- Bone density
- Heart and blood vessel health
- Muscle mass
- Skin elasticity and collagen
- Hair growth
- Vaginal tissue and lubrication
- Libido
- Gut health
- Metabolism and energy
This is why low oestrogen can show up in so many different ways.
Common Signs of Low Oestrogen
Women often first notice low oestrogen through subtle changes before the more obvious symptoms arrive. Some of the most common signs include:
- Hot flushes and night sweats
- Palpitations or heart flutters
- Thinning hair and dry skin
- Vaginal dryness or painful sex
- Urinary urgency or incontinence
- Depression, anxiety, low mood, or emotional sensitivity
- Low libido (both sexual and general “lust for life”)
- Fatigue and low motivation
- Muscle or joint pain and stiffness
- Brain fog, forgetfulness, difficulty concentrating
These symptoms can appear gradually or show up almost overnight , especially in perimenopause.
A Quick but Important Caveat About Perimenopause
In the early stages of perimenopause, oestrogen isn’t always low. In fact, for many women, oestrogen is still robust , and can even be higher than usual at times.
But perimenopause is an erratic and unpredictable hormonal stage.
Even if your overall levels aren’t consistently low, you can still experience sudden oestrogen dips, and those drops are enough to trigger low-oestrogen symptoms.
This is why women in early perimenopause often say: “I feel totally fine some weeks, and then suddenly I feel like I’ve been hit by a truck.”
The real goal here is to support the rollercoaster , calming the highs and lows so the drops aren’t as sharp or as hard-hitting on your nervous system.
For this blog, however, we’re talking mainly about true low oestrogen overall, not just temporary dips.
Why Oestrogen Can Become Low (At Any Age)
Although perimenopause and menopause are the most common reasons oestrogen falls, they’re not the only ones. Younger women can also experience low oestrogen for several reasons:
1. Chronic Stress
When you’re under long-term stress, your body prioritises survival over reproduction.
Your adrenal glands shift their focus to cortisol production, leaving little capacity for oestrogen.
This is especially important in perimenopause, when your adrenals are meant to help “pick up the slack” as ovarian oestrogen declines.
2. Under-eating or Low Body Fat
If you’re skipping meals, dieting, over-exercising, or unintentionally under-fuelling, your body may reduce ovulation , and without ovulation, oestrogen production drops.
3. Over-Exercising
Long, intense cardio or endurance training can signal physical stress, again lowering reproductive hormones.
4. Thyroid Issues
Thyroid function and oestrogen metabolism are closely linked. Low thyroid function can impair the liver’s ability to process and recycle hormones, contributing to imbalances.
5. Hormonal Contraception
The pill switches off the brain–ovary communication entirely.
Synthetic hormones replace natural ones , but they don’t provide the same benefits for the brain, mood, bones, or cardiovascular system.
After stopping the pill, it can take months (sometimes longer) for natural oestrogen production to return.
6. Rapid Weight Loss, Nutrient Deficiencies, or Toxin Exposure
B vitamins, magnesium, zinc, fats, and adequate calories are all essential for hormone production. Environmental toxins can also disrupt hormone signalling.
How to Support Healthy Oestrogen Levels Naturally
The aim isn’t to chase “more” oestrogen , it’s to support your body’s natural rhythm.
Here’s where to start:
1. Eat Enough (Especially Healthy Fats + Protein)
- Avocado
- Olive oil
- Nuts + seeds
- Oily fish
- Eggs
- Tofu, tempeh, lentils
Protein supports hormone production, blood sugar balance, muscle mass, and liver detoxification.
2. Prioritise Stress Reduction + Nervous System Support
Oestrogen can only thrive when your body feels safe.
Try:
- Breathwork
- Yoga
- Walking outdoors
- Journaling
- Time in nature
- Regular rest
- A consistent sleep schedule
- Daylight exposure early in the day
3. Support Liver + Gut Health
Your body must break down and eliminate used oestrogen.
Support this with:
- Cruciferous vegetables (broccoli, kale, rocket, cauliflower)
- Daily bowel movements
- Hydration
- Minimising alcohol
- Gentle detox support from whole foods
4. Strength Training
Muscle is metabolically active and protective , especially as oestrogen declines. Aim for 2–3 sessions per week.
5. Phytoestrogens for Gentle Balance
Foods like flaxseeds, chickpeas, lentils, and fermented soy can help smooth out high–low fluctuations.
How Do You Know If Low Oestrogen Is Really the Issue?
Symptoms give good clues, but hormone testing provides clarity. The DUTCH test is one of the most comprehensive ways to assess:
- Oestrogen levels
- Oestrogen metabolites
- Cortisol patterns
- Adrenal function
- Hormone detox pathways
This can help identify whether symptoms are due to low oestrogen, poor oestrogen metabolism, or adrenal dysregulation.
Final Thoughts: You’re Not “Losing Yourself” , Your Hormones Just Need Support
Oestrogen plays such a central role in how you feel, think, move, and show up in the world. When levels drop or fluctuate sharply, you feel it , physically, mentally, and emotionally.
But the good news is: you can support your body profoundly during this time.
With nourishment, stress resilience, movement, sleep, gut support, and (if needed) personalised hormone testing, you can ease symptoms and feel more grounded and energised again.
If this blog resonates with you or you recognised yourself in these symptoms, you may benefit from deeper support.
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