Why Women Feel Hormonal After 40 | Perimenopause, Oestrogen Dominance & Gut Health

You are tired, irritable, bloated, anxious, forgetful, not sleeping properly, gaining weight around the middle, and feeling unlike yourself.

Yet blood tests may come back “normal”.

For many women over 35, especially through peri-menopause, this is where frustration begins. They know something has changed, but often feel unheard or dismissed.

One common pattern behind these symptoms is what is often called Oestrogen Dominance.

This does not always mean high oestrogen on a blood test. More often, it means oestrogen is relatively stronger than progesterone, or the body is struggling to process and clear hormones efficiently.

By Dr Catherine W. Dunne, MSc.D., RGN (GPN)
Holistic Healthcare Wexford | Co-founder, Aumvedas Academy

What Does Oestrogen Dominance Mean?

Hormones work in balance, not isolation.

Oestrogen has many important roles. It supports bones, skin, mood, brain function, the cardiovascular system and reproductive health. But when it outweighs progesterone, symptoms can begin to appear.

This often happens during peri-menopause, when progesterone may fall sooner and faster than oestrogen.

The result can be a body that feels hormonally unsettled.

Common Signs Women Notice

  • heavier or irregular periods
  • breast tenderness
  • bloating and fluid retention
  • mood swings or irritability
  • anxiety or inner tension
  • poor sleep
  • headaches
  • brain fog
  • reduced stress tolerance
  • stubborn weight gain, especially midsection
  • feeling unlike yourself

And yes, many women simply know something is changing long before any test confirms it.

Walking into doorframes may also feature. We shall call that advanced hormonal navigation.

Many women enter their forties expecting a few hot flushes, some skipped periods, and perhaps the occasional mood swing. What they often get instead is a confusing collection of symptoms that seem to arrive all at once: bloating, weight gain around the middle, poor sleep, anxiety, breast tenderness, headaches, heavy or erratic periods, low mood, brain fog, irritability, and the unsettling feeling that they are somehow no longer themselves.

They go for blood tests. They are told everything is normal. They are advised to “manage stress” or accept that it is simply age.

Yet many women know in their bones that something has shifted.

One of the most common phrases used online to describe this experience is oestrogen dominance. It is not a formal medical diagnosis in the same way diabetes or hypothyroidism is, but it is often used to describe a very real pattern: when oestrogenic influence outweighs the balancing effects of progesterone, or when the body is carrying a broader hormonal burden that affects how a woman feels.

This does not always mean oestrogen is high on a blood test. More often, it means oestrogen is relatively stronger than progesterone, or the body is struggling to process, clear and regulate hormones efficiently. In other words, the issue may not be one hormone acting alone. It may be the whole terrain.

The Midlife Hormone Shift Begins Before Menopause

Many women assume menopause begins when periods stop. In reality, the turbulence often starts years earlier.

During perimenopause, ovulation becomes less predictable. Progesterone often declines first, while oestrogen may surge, dip or fluctuate wildly. This can create the classic picture associated with relative oestrogen excess: heavier periods, PMS-like symptoms, fluid retention, mood swings, poor sleep, breast tenderness, migraines and irritability.

When menopause arrives, periods cease, but symptoms do not necessarily vanish. Many women then face a new landscape of sleep disturbance, hot flushes, weight redistribution, vaginal dryness, anxiety, lowered resilience and fatigue.

Even post-menopause, hormones still matter. Fat tissue can continue to produce oestrogen through aromatase activity, lifestyle factors influence hormone metabolism, and environmental chemicals may continue to affect signalling pathways.

So no, the hormone story does not end at menopause. It simply changes chapter.

We Are the Plastic Container Generation

One part of the modern story that deserves far more attention is environmental exposure.

We became the convenience generation. We store food in plastic tubs, heat leftovers in plastic containers, drink water from bottles left in warm cars, wrap food in cling film, and begin our mornings with scalding tea or coffee in takeaway cups lined with plastic polymers and topped with plastic lids.

Many plastics contain compounds such as bisphenols, including BPA, BPS and BPF, as well as phthalates. These chemicals have been studied for their endocrine-disrupting potential, meaning they may interfere with natural hormone signalling.

The issue is not one takeaway coffee, one plastic lunchbox or one bottle of water. It is the small, repeated exposure over years.

Heat increases concern. Microwaving food in plastic, dishwashing worn containers repeatedly, pouring hot liquids into plastic-lined cups, or leaving bottles in sunlight may increase chemical migration. Even thermal till receipts have historically used bisphenol compounds, which can be absorbed through the skin.

This does not mean panic or perfectionism. It means awareness. Simple changes can reduce unnecessary load: use glass containers where possible, choose ceramic mugs, use stainless steel bottles, avoid heating food in plastic, and take a reusable cup for takeaway drinks.

Sometimes the body is not failing women. Sometimes the environment is working against them.

Food Quality Still Matters

Another overlooked area is the quality of the modern food supply.

One of the most significant concerns in discussions around oestrogen dominance is high-oestrogenic or hormonally disruptive food exposure. Commercially raised animals may be exposed to growth-promoting systems designed to increase size, speed of growth or milk production, depending on the country and farming system. Consumers are increasingly aware that what happens in the food chain does not magically stop at the plate.

Conventional produce may also carry residues from pesticides, herbicides and fungicides. Some of these compounds have been studied for endocrine-disrupting effects and may interfere with natural hormone activity, blood sugar regulation and metabolism. While residues may be present only in small amounts on individual fruits or vegetables, the concern is cumulative exposure over time.

This is why many people choose organic, local, pasture-raised or lower-intervention foods where feasible. Not out of fear, but because reducing the overall body burden makes sense.

Processed foods create a separate problem. Ultra-processed diets are often low in fibre, magnesium and protective plant compounds, while being high in refined sugars, additives, poor-quality fats and calorie density. This combination can worsen insulin resistance, inflammation and weight gain, all of which can influence hormone balance.

The real issue is rarely one “bad food”. It is the sum total of modern eating patterns.

Your Gut Helps Regulate Oestrogen

One of the most fascinating and under-discussed areas of women’s health is the gut-hormone connection.

The gut microbiome helps regulate circulating oestrogen through a group of bacterial genes often referred to as the estrobolome. These gut bacteria influence enzymes such as beta-glucuronidase, which are involved in whether oestrogens are eliminated from the body or reactivated and recirculated.

When gut flora is diverse and healthy, hormones are more likely to be processed and cleared efficiently. When gut balance is disturbed through repeated antibiotics, poor diet, chronic stress, constipation, alcohol excess, IBS-type patterns, dysbiosis or conditions such as SIBO, oestrogen recirculation may increase.

Many women with hormonal symptoms also report bloating, sluggish bowels, food sensitivities, recurrent thrush, IBS-type symptoms, and worsening PMS or peri-menopausal symptoms.

That is not coincidence.

Supporting gut health may include increasing fibre, vegetables, resistant starches, fermented foods where tolerated, adequate hydration and regular movement. In some cases, live bacteria cultures, often called probiotics, may help support gut flora and restore microbial balance, especially after antibiotics or periods of digestive disruption.

A healthy bowel habit is one of the least glamorous but most practical hormone tools available. Not glamorous, no. Useful? Absolutely.

Liver, Elimination and the Hormone Clearance Pathway

The liver plays a major role in processing hormones, including oestrogen. Once hormones have been metabolised by the liver, they still need to leave the body through bile and bowel elimination.

If a woman is constipated, inflamed, sleep deprived, nutrient depleted, drinking too much alcohol, under chronic stress or living on processed foods, the system can become less efficient. This does not mean the liver is “broken”. It means the workload is too high and the support is too low.

Good hormone clearance depends on the basics: enough protein, fibre, minerals, hydration, bowel regularity, sleep and reduced toxic load.

Simple, yes. Easy in modern life? Not always.

Where Sage Fits In

Sage is one of the old traditional women’s herbs that deserves renewed respect.

It has long been used for hot flushes, night sweats, excessive perspiration, digestive sluggishness, brain fog, and that overheated, unsettled feeling many women recognise during perimenopause and menopause.

Sage is not a magic hormone cure, and it should not be presented as something that “fixes” oestrogen dominance. Its value is more practical than that. It may support women through the symptoms of hormonal transition, especially where sweating, flushes and digestive heaviness are part of the picture.

The simplest form is sage tea. Use one teaspoon of dried sage leaf, or three to five fresh leaves, in a cup of hot water. Cover and steep for around ten minutes. One cup daily may offer gentle support, while up to two cups daily may be used during hot flush phases.

Sage tincture is another option, commonly taken as twenty to thirty drops in water once or twice daily, depending on product strength.

Regular culinary use also has value. Sage works beautifully in soups, roasted vegetables, stuffing, poultry dishes and savoury cooking. Small regular use often beats heroic one-off efforts.

Sage should be used cautiously in pregnancy, breastfeeding, seizure disorders, or where medications and health conditions require professional advice.

The Wild Yam Myth

For years, wild yam supplements were marketed as natural progesterone support.

Wild yam contains diosgenin, a plant compound used in laboratories as a starting material to manufacture steroid hormones. However, the human body does not naturally convert wild yam into progesterone. That conversion requires industrial processing.

So while some women may feel better using wild yam products, it should not be presented as equivalent to progesterone replacement.

Meanwhile, many women do not realise that in Ireland and Europe, regulated body-identical hormone therapies such as oestradiol and micronised progesterone are already available through licensed medical care and are generally preferred by professional menopause bodies over unregulated compounded alternatives.

That does not mean every woman needs HRT. It means women deserve accurate information rather than marketing fog.

Nutrients That Matter More Than Many Realise

Hormones do not work in isolation. They depend on healthy cells, nervous system balance, mineral sufficiency, mitochondrial energy and sleep.

This is why some women feel dramatically better when foundations are corrected.

Vitamin D3 is particularly relevant in Ireland, where low sunlight exposure is common. It functions more like a hormone messenger than a simple vitamin and influences mood, immunity and bone health.

Vitamin K2 is often paired with D3 to support healthy calcium handling.

Magnesium is one of the most important minerals for midlife women. It supports sleep, nervous system calm, muscle relaxation, blood sugar balance, vitamin D metabolism and stress resilience.

CoQ10 supports mitochondrial energy production and may be especially relevant in fatigue states, ageing and for women using statins.

NAC, or N-acetyl cysteine, supports glutathione pathways and antioxidant defence and is often discussed in relation to inflammation, metabolic health and resilience.

These are not magic pills. They are part of restoring the terrain in which hormones must function.

What Women Need Most

Many women do not need another lecture telling them to “just relax”.

They need a proper conversation that recognises the complexity of modern midlife health.

They may be dealing with changing hormones, sleep debt, stress overload, mineral depletion, low vitamin D, insulin resistance, environmental chemical burden, gut imbalance, caring responsibilities and years of putting everyone else first.

That is not a minor issue. That is a full-body systems load.

And yes, walking into doorframes, forgetting why you entered a room and losing your words mid-sentence may also feature. We shall call that advanced hormonal navigation.

What Can Help Practically?

The answer is rarely one tablet, one test or one buzzword. It is usually a return to fundamentals.

Eat enough protein. Build meals around real food. Increase fibre gradually. Support bowel regularity. Reduce plastic exposure where possible. Stop heating food in plastic. Choose better-quality food where feasible. Move daily. Strength train if able. Prioritise sleep. Correct nutrient deficiencies. Support gut flora. Reduce alcohol. Use herbs wisely. Seek medical support when symptoms are significant.

And most importantly, listen to the body before it has to shout.

One Size Does Not Fit All

It is also important to say this clearly: no two women experience perimenopause, menopause or post-menopause in exactly the same way.

One woman may struggle mainly with sleep and anxiety. Another may have heavy bleeding and migraines. Another may have hot flushes, joint aches, weight gain, vaginal dryness, low mood, or no major symptoms at all.

This is why the suggestions in this article should not be treated as a “one-for-all” prescription. They are general educational supports, not a personalised treatment plan. What helps one woman may not suit another, especially where medications, medical history, hormone-sensitive conditions, thyroid issues, diabetes, mental health concerns or other factors are involved.

Women deserve individualised care, not a conveyor-belt approach. Midlife health is not a template. It is a conversation.

Important Reality Check

Not every symptom in midlife is “just hormones”.

Persistent heavy bleeding, severe pain, sudden changes, unexplained weight loss, profound fatigue, depression, palpitations, post-menopausal bleeding or concerning symptoms deserve proper medical review.

Women should not be dismissed, but neither should everything be blamed on hormones without careful assessment.

Final Thought

Perimenopause and menopause do not create weakness. They reveal where the body has been carrying strain for years.

When women understand that, everything changes.

The body is not being dramatic. It is communicating.

Sometimes healing begins not with being told that everything is normal, but with finally being understood.

I hope you feel inspired. Look after your body, and it will keep you healthy.

Catherine

CWD | 25 April 2026 | Ireland

Holistic Healthcare Wexford
Integrative · Mindful · Patient-Centred

About the Author

Dr Catherine W. Dunne MSc.D. is a Registered General Nurse with over 37 years of clinical experience in primary care in Ireland. Alongside her work in General Practice Nursing, she is the founder of Holistic Healthcare Wexford and co-founder of Aumvedas Academy.

With a background that bridges conventional medicine and holistic practice, Catherine has a particular interest in the area where patients are often told “everything is normal,” yet still feel unwell. Her work focuses on helping people understand what their body is communicating, especially in relation to energy, stress, metabolic function, and recovery.

Through a combination of clinical knowledge and holistic support, she works with individuals to restore balance, improve resilience, and support long-term wellbeing.

Based in Wexford, Ireland.

Disclaimer

This article is for informational and educational purposes only and is not intended as medical advice. It does not replace consultation with a qualified healthcare professional. Patients should always seek appropriate medical guidance regarding their individual health needs and before making changes to treatment or care.

Zinc deficiency symptoms: The Quiet Mineral Behind Sleep, Stress, Immunity and Attention

Before assuming something complex is wrong, it is always wise to make sure the body has the nutrients it quietly depends on every day.

Dr Catherine W. Dunne MSc.D., RGN
Holistic HealthCare Wexford & Aumvedas Academy
Nurse, Medical Intuitive and Holistic Practitioner

They do not arrive with much fanfare. They are not advertised everywhere. And yet, when they begin to run low, the body starts sending little signals that something is not quite right.

Zinc is one of those nutrients.

It plays a role in hundreds of processes throughout the body — immunity, digestion, hormone balance, brain chemistry, sleep regulation, wound healing, and how well we cope with stress.

In practice, I often see people struggling with a collection of symptoms rather than a single complaint. Poor sleep, frequent infections, low resilience to stress, digestive discomfort, brain fog, or stubborn fatigue.

Sometimes the missing piece is not complicated at all. Sometimes it is simply that the body has run a little short of the minerals it depends on every day. And zinc is one of the most important of those.

Here are five early signs your body may be asking for more zinc:

Why zinc matters so much

Zinc is involved in more than 300 enzyme reactions in the body and influences thousands of cellular processes.

It supports:

  • immune defence
  • wound healing
  • skin repair
  • hormone production
  • pancreatic function
  • neurotransmitter balance
  • cognitive performance
  • antioxidant protection
  • tissue growth and repair

It also plays an important role in the brain, thymus gland, digestive system, and stress response.

In other words, zinc is deeply woven into how the body maintains balance.

Early signs zinc may be running low

Zinc deficiency rarely announces itself dramatically in the beginning. Instead, it tends to show up as small persistent changes that people often dismiss.

Some early clues may include:

  • reduced taste or smell
  • poor appetite
  • bloating or digestive discomfort
  • slow wound healing
  • frequent colds or infections
  • white spots on fingernails
  • thinning hair
  • low mood
  • poor sleep
  • reduced stress tolerance

None of these symptoms alone proves a deficiency, of course. But when several appear together, it is often worth taking a closer look at nutritional foundations.

Zinc, stress and the cortisol connection

Modern life places the body under considerable stress — emotional stress, work stress, sleep disruption, inflammation, infections, and environmental factors.

One of the body’s main stress hormones is cortisol.

In short bursts, cortisol is helpful. It allows us to respond quickly and manage challenges. But when stress becomes chronic, cortisol can begin to disrupt several systems in the body.

One of the things chronic stress does is increase zinc loss.

At the same time, zinc is needed to support the immune system, regulate inflammation, and stabilise the nervous system. So when stress increases, the body may actually require more zinc, while at the same time losing more of it.

Over time this can become a loop:

stress increases cortisol

cortisol contributes to zinc depletion

low zinc reduces resilience

fatigue and inflammation rise

stress becomes harder to manage

Breaking that cycle sometimes begins with restoring the body’s basic nutritional building blocks.

Zinc and the immune system

Zinc is essential for the healthy function of the thymus gland, which sits behind the breastbone.

The thymus plays a central role in the development of T-cells, the immune cells that help recognise and fight infections.

When zinc levels fall, the thymus becomes less active and immune resilience can decline. This may partly explain why people with low zinc status sometimes notice that they seem to “catch everything” going around.

As we age, thymus activity naturally declines, which makes maintaining good zinc levels even more relevant.

Zinc and the brain

The brain contains surprisingly high concentrations of zinc.

It participates in the regulation of several neurotransmitters including:

  • dopamine
  • serotonin
  • GABA
  • glutamate

These chemical messengers influence mood, motivation, attention, memory, and sleep.

When zinc levels are suboptimal, people may notice changes such as:

  • brain fog
  • reduced concentration
  • lower mood
  • mental fatigue
  • disrupted sleep patterns

This is one reason zinc has attracted increasing attention in research around mood, cognitive function, and attention regulation.

A quiet conversation around attention and ADHD

Something I hear more often now in practice is adults wondering whether long-standing struggles with focus, motivation or mental organisation may be related to ADHD.

Many adults are seeking assessments for the first time in their lives.

While ADHD is a complex neurodevelopmental condition with many contributing factors, nutrition does influence brain chemistry in meaningful ways.

Zinc, for example, plays a role in dopamine metabolism, a neurotransmitter that is strongly linked with attention, reward signalling, and motivation.

Several studies have found that some children — and adults — with attention difficulties show lower zinc levels than average.

This does not mean zinc deficiency causes ADHD. Human biology is never that simple.

But it does remind us that before labelling the brain as “broken”, it is wise to make sure the body has the nutritional tools it needs to function well.

Sometimes the brain is not faulty. Sometimes it is simply under-supported.

What if you do not eat shellfish or red meat?

Oysters and shellfish are among the richest sources of zinc in the human diet. Red meat is another significant contributor.

If these foods are not eaten, zinc intake can become marginal over time, especially if the diet is high in grains and legumes.

Plant foods contain phytates, which reduce zinc absorption.

Vegetarians and vegans can absolutely maintain good zinc status, but it requires a little more intention.

Helpful plant sources include:

  • pumpkin seeds
  • sesame seeds or tahini
  • cashews
  • chickpeas
  • lentils
  • hemp seeds

Traditional preparation methods such as soaking, sprouting and fermenting help improve mineral absorption from plant foods.

Does fish oil provide zinc?

No.

Omega-3 fish oils contain fatty acids such as EPA and DHA, but they do not provide meaningful amounts of zinc. Minerals remain in the tissue of the food, not in the extracted oil.

Whole foods provide minerals. Oils provide fats.

Both have their place, but they are not interchangeable.

Should zinc be taken with copper?

Zinc and copper work together in the body and need to remain balanced.

Taking higher doses of zinc for long periods can gradually reduce copper absorption. Copper is important for iron metabolism, connective tissue health and nervous system function.

For this reason, many practitioners recommend ensuring copper intake remains adequate when zinc is supplemented for several months.

Nature often balances these minerals together in foods such as shellfish, nuts and organ meats.

Choosing a zinc supplement

If supplementation is needed, some of the better absorbed forms include:

  • zinc picolinate
  • zinc bisglycinate
  • zinc citrate

These tend to be easier for the body to absorb than zinc oxide.

For many adults, 15–25 mg daily is a common supportive range, though individual needs can vary.

Higher doses are sometimes used short term but should be approached thoughtfully.

How long should zinc be taken?

For general support, zinc can often be taken daily for a few months, then reviewed.

A practical approach used by many people is:

  • 2 to 3 months of supplementation
  • followed by a short break or reassessment

This is especially wise if symptoms improve, diet changes, or the person is also using a multi-mineral formula.

As always, the goal is not to live by the supplement drawer like it is a tiny pharmacy in the kitchen. The real aim is to restore balance and support the body well enough that it needs less propping up over time.

A final thought

Zinc may not be the most glamorous nutrient, but it is one of the most important.

It influences immunity, digestion, brain chemistry, sleep, stress resilience, hormone function and tissue repair. When it is low, the body often sends out early whispers long before it starts shouting.

For those who cannot eat shellfish, oysters or red meat, zinc is worth paying attention to. For those under chronic stress, struggling with poor sleep, frequent infections or slow recovery, it may be one of the missing pieces.

As with so much in health, the body works as an integrated system. Zinc does not act alone, but without it, many systems begin to falter.

Sometimes the smallest minerals carry the biggest workload.

Disclaimer:
The information provided in this article is for educational and informational purposes only and is not intended as medical advice. It should not be used to diagnose, treat, cure, or prevent any medical condition. Always consult with a qualified healthcare professional before starting any new supplement, nutritional programme, or health intervention, particularly if you have an existing medical condition, are pregnant, breastfeeding, or taking prescription medications.

Individual nutritional needs can vary, and what is appropriate for one person may not be suitable for another.

This article is intended to support informed health awareness and should not replace personalised medical guidance.

I hope you feel inspired. Look after your body, and it will keep you healthy.

Catherine

CWD 16 March 2026/Ireland

About the Author

Dr. Catherine W. Dunne MSc.D., RGN is a nurse, holistic practitioner, and educator based in Wexford, Ireland. With over 30 years of experience in healthcare and energy-based healing modalities, she integrates conventional medical knowledge with holistic approaches to support whole-person well-being.

Catherine is the founder of Holistic HealthCare Wexford and co-founder of Aumvedas Academy, where she teaches courses in holistic health, energy medicine, and integrative healing practices.

Her work focuses on empowering people to understand the body as an intelligent system capable of healing when supported with the right knowledge, nutrition, and energetic balance.

Learn more:
Holistic HealthCare Wexford
Aumvedas Academy