Why You're So Exhausted During Menopause. What to Eat to Get Your Energy Back

Fatigue is one of the most common and most debilitating symptoms of menopause. Not just tiredness. A bone-deep, persistent exhaustion that sleep doesn't seem to fully resolve. The kind that makes even enjoyable activities feel like effort, and that leaves you wondering whether you'll ever feel energetic and vital again.

The causes of menopause-related fatigue are multiple and interconnected. But here is what we want you to know: fatigue during menopause is not inevitable, it is not simply 'getting older', and nutrition has a powerful role to play in restoring your energy. Let's explore what's actually happening, and what to do about it.

The Drivers of Menopause Fatigue

Disrupted sleep is the most obvious contributor. Night sweats, waking in the early hours, and difficulty falling back to sleep mean that many women are in a state of chronic sleep deprivation and no amount of motivation overcomes the physiological effects of insufficient rest. Addressing sleep through nutrition (covered in our dedicated sleep blog) is often the most impactful first step.

Hormonal fluctuations directly affect energy at the cellular level. Oestrogen influences mitochondrial function, the energy-producing machinery within every cell, and as levels fluctuate and decline, cellular energy production becomes less efficient. This is a genuine biological phenomenon, not a psychological one.

Thyroid dysfunction becomes more common around menopause, and an underactive thyroid (hypothyroidism) causes profound fatigue, weight gain, low mood, and cold sensitivity. If fatigue is a dominant symptom, it is worth asking your GP to check thyroid function alongside a full hormonal panel.

Iron deficiency anaemia is frequently overlooked in perimenopausal women, particularly those experiencing heavier periods. Iron is essential for oxygen transport in the blood, without adequate iron, every cell in the body receives less oxygen, and fatigue is the inevitable result.

Blood sugar dysregulation, covered in detail in our companion blog, causes the energy peaks and crashes that leave so many women feeling depleted across the day. Adrenal fatigue from chronically elevated cortisol further depletes energy reserves.

Key Nutrients for Energy Production

B vitamins are the energy vitamins, they are directly involved in the metabolic pathways that convert food into cellular energy (ATP). B12 deficiency in particular causes profound fatigue, and absorption of B12 decreases with age. B12 is found exclusively in animal products: meat, fish, eggs, and dairy. Women following plant-based diets should supplement.

B vitamins as a group, B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6, and folate, are found in wholegrains, legumes, eggs, leafy greens, nutritional yeast, and quality meat and fish. Stress and alcohol both deplete B vitamins rapidly.

Iron carries oxygen to every cell in the body, and low iron is one of the most common and correctable causes of fatigue in women. Red meat, lentils, spinach, pumpkin seeds, and fortified cereals are good dietary sources, always pair plant-based iron with Vitamin C to significantly enhance absorption. If fatigue is significant, ask your GP to check ferritin (iron stores) as well as haemoglobin, as ferritin can be low even when anaemia is not yet present.

Magnesium is required for over 300 enzymatic reactions in the body, many of which are involved in energy metabolism. It is also essential for quality sleep, itself the foundation of daytime energy. Many women are chronically deficient. Dark leafy greens, pumpkin seeds, almonds, dark chocolate, and avocado are rich sources.

Coenzyme Q10 (CoQ10) is a compound produced naturally in the body that plays a central role in mitochondrial energy production. Production declines with age, and CoQ10 is found in meaningful amounts in oily fish, organ meats, and whole grains. It is one of the better-evidenced supplements for energy and is worth discussing with a nutritionist if fatigue is persistent.

Vitamin D deficiency, extremely common in Northern Europe, is associated with fatigue, low mood, muscle weakness, and impaired immune function. Getting levels tested and supplementing appropriately if deficient can make a meaningful difference to overall energy.

Eating for Sustained Energy: Practical Principles

•        Never skip breakfast — eating within an hour of waking stabilises cortisol and blood sugar, setting the metabolic tone for the day

•        Prioritise protein at every meal — it provides sustained energy without the blood sugar spike and crash of refined carbohydrates

•        Eat regular meals — going more than four to five hours without eating triggers cortisol release and energy dips

•        Stay well hydrated — even mild dehydration causes fatigue and impairs concentration; aim for 1.5–2 litres of water daily

•        Limit caffeine after 2pm — it disrupts sleep, and the short-term energy boost it provides is borrowed from tomorrow's reserves

•        Include iron-rich foods daily, especially if periods have been heavy

•        Eat a rainbow of vegetables — the phytonutrients and antioxidants in colourful plant foods support mitochondrial health and reduce the oxidative stress that contributes to fatigue

A Note on Rest

Nutrition can do a great deal for energy, but it works best alongside adequate rest, stress management, and movement. Gentle, regular exercise, even a daily walk, significantly improves energy levels over time by supporting mitochondrial health, improving sleep quality, and lifting mood. The goal is not to push through exhaustion with willpower and caffeine. It is to genuinely nourish your body so that energy becomes your natural state again.

💡 Discover how to eat for sustained energy, hormonal balance, and vibrant health through menopause. Our 'Thriving Through Menopause' course gives you everything you need to feel like yourself again. Contact us @ linnenutrition.com to get started.