Midlife Hormones and PCOS

For many women, perimenopause can feel confusing enough on its own. When you add PCOS or PMOS into the mix, it can sometimes feel as though your hormones are becoming even more unpredictable.

You may notice changes in your cycle, worsening sleep, increased anxiety, more stubborn weight gain, fatigue, joint aches, digestive symptoms or feeling far less resilient to stress than you used to. Many women also tell me that the strategies that once “worked” for their body suddenly no longer seem effective.

This can feel incredibly frustrating, particularly for women who have often spent years trying to manage symptoms already.

The good news is that nutrition and lifestyle factors may still have a powerful impact during this stage of life. While we cannot stop hormonal changes from occurring, we can often support how resilient and supported the body feels through the transition.

Why perimenopause can feel more intense with PCOS/PMOS

Perimenopause is the stage leading up to menopause where hormone levels begin to fluctuate more significantly. Oestrogen and progesterone levels may rise and fall unpredictably, which can affect mood, sleep, appetite, energy and menstrual cycles.

For women with PCOS/PMOS, this transition can sometimes feel more complicated because many are already dealing with underlying insulin resistance, inflammation, disrupted ovulation or nervous system dysregulation.

Research suggests that insulin resistance may become more significant during midlife due to age-related changes in muscle mass, body composition and hormonal signalling. This may contribute to increased fatigue, cravings, blood sugar swings and changes in weight distribution around the abdomen.

Sleep disturbances may also worsen during perimenopause, and poor sleep itself can negatively affect blood sugar balance, appetite regulation and stress hormones.

Many women also find that they become less tolerant to restrictive dieting, skipping meals or over-exercising during this stage of life. The body often responds far better to nourishment, consistency and recovery than to extremes.

Interestingly, research suggests that menopause itself may look slightly different in women with PCOS/PMOS compared with women without the condition.

Some studies suggest that women with PCOS may experience menopause slightly later on average, potentially due to a larger remaining follicle pool across the lifespan. However, this does not necessarily mean symptoms are easier. Many women continue to experience metabolic and hormonal challenges well into midlife and beyond.

Although testosterone levels often decline with age, women with PCOS/PMOS may still have relatively higher androgen levels after menopause compared with women without the condition. Insulin resistance also frequently persists, even after periods stop, which means blood sugar regulation, cardiovascular health and body composition often remain important areas of support.

This is one reason why some women notice increasing abdominal weight gain, rising cholesterol levels, worsening sleep or changes in energy levels during perimenopause and menopause. The hormonal shifts of midlife may amplify underlying insulin resistance and inflammatory pathways that were already present to some degree.

Research also suggests that women with PCOS may have a higher long-term risk of conditions linked to metabolic health, including type 2 diabetes, fatty liver disease and cardiovascular disease. This does not mean these outcomes are inevitable, but it does highlight the importance of focusing on sustainable lifestyle foundations during midlife rather than approaching menopause as simply the end of reproductive symptoms.

At the same time, many women with PCOS/PMOS describe feeling relieved once cycles become less unpredictable and ovulation-related symptoms settle. For some, this stage can become an opportunity to shift away from years of restrictive approaches and towards a more supportive and sustainable relationship with food, movement and health.

Protein, fibre and blood sugar balance

One of the most helpful places to start during perimenopause is often blood sugar balance.

Fluctuating blood sugar levels may contribute to energy crashes, increased hunger, poor concentration, mood swings and cravings. For women with PCOS/PMOS, stabilising blood sugar may also help support insulin sensitivity and overall hormone regulation.

This is where protein becomes particularly important.

Many women are simply not eating enough protein earlier in the day, which can leave them feeling hungrier, more fatigued and more likely to rely on sugar or caffeine to get through the afternoon.

Including protein at meals may help support:

• Energy levels
• Muscle maintenance
• Blood sugar regulation
• Appetite control
• Recovery and healthy ageing

Foods such as eggs, Greek yoghurt, fish, lean meat, chicken, tofu, edamame beans, lentils and high-protein breakfasts can all be useful additions depending on individual preferences and tolerances.

Fibre is equally important. Research increasingly shows that fibre supports not only digestive health, but also blood sugar regulation, cholesterol balance and the gut microbiome. This becomes especially relevant during midlife, when cardiovascular and metabolic health become increasingly important considerations.

Most women would benefit from gradually increasing fibre intake through foods such as:

• Vegetables
• Berries
• Oats
• Chia seeds
• Flaxseeds
• Beans and lentils
• Nuts and seeds

A Mediterranean-style approach to eating is consistently associated with better metabolic, cardiovascular and cognitive health outcomes, and may be particularly supportive during perimenopause.

Nutrients that matter most in midlife

Rather than focusing on trendy supplements or restrictive protocols, I often encourage women to focus on nutritional foundations first. Some nutrients that may become increasingly important during perimenopause include:

Protein Important for muscle mass, blood sugar balance, bone health and recovery.

Calcium and vitamin D Both play important roles in bone health, particularly as oestrogen levels decline.

Omega-3 fats May help support cardiovascular, cognitive and inflammatory health.

Magnesium Involved in hundreds of processes in the body including sleep, muscle function, stress regulation and blood sugar balance.

Iron Heavy or irregular periods during perimenopause may still contribute to low iron status in some women, which can affect energy and concentration.

Phytoestrogen-rich foods Foods such as ground flaxseeds, tofu, tempeh and edamame contain naturally occurring phytoestrogens which may be supportive for some women during perimenopause.

Importantly, more supplementation is not always better. Individual needs vary significantly, and personalised support is often most helpful.

Supporting your body rather than fighting it

One of the biggest mindset shifts I encourage during perimenopause is moving away from punishment-based approaches to health.

Many women with PCOS/PMOS have spent years believing they simply need more willpower, stricter diets or more intense exercise. In reality, midlife hormones often respond far better to consistency, nourishment, sleep, stress support and realistic habits.

This stage of life is not about perfection. It is about building a way of eating and living that supports energy, metabolic health, muscle mass, mood and long-term wellbeing.

You can read more about bone and muscle health in my recent blog on Bone Health and PCOS/PMOS, where I discuss strength training, vitamin D and healthy ageing in more detail.

And don't forget you can always book in a free call with us too.

Please note: Nutritional therapy does not diagnose or treat medical conditions. Always speak to your GP regarding persistent symptoms or concerns about menopause or hormonal health.