Something I used to believe was that if you ate a good, varied diet, you would get everything your body needed. And for a long time, that was largely true. But in midlife, the picture shifts. The nutrient demands of your body change. Your ability to absorb and utilise certain nutrients can change. And the gap between what a good diet provides and what your body actually needs to function optimally can widen in ways you might not expect.
This is not about taking handfuls of supplements or following someone else’s protocol. It is about understanding which nutrients become particularly important during perimenopause and menopause, why they matter, and how to make informed decisions about whether food alone is meeting your needs. The goal is always to use nutrition strategically — starting with a strong dietary foundation and then adding targeted support where it is genuinely needed.
Protein: The Non-Negotiable
If there is one nutritional priority that rises above all others in midlife, it is protein. Protein supports muscle maintenance and growth, which becomes critical as the natural tendency to lose muscle accelerates with declining hormones. It has a higher thermic effect than carbohydrates or fat, meaning your body uses more energy to digest it. It stabilises blood sugar and improves satiety, reducing cravings and overeating. And it provides the amino acid building blocks for neurotransmitter production, immune function, and tissue repair.
Most women in midlife are not eating enough protein. The general recommendation for women in perimenopause and menopause is at least 1.2 to 1.6 grams per kilogram of body weight per day, with some experts suggesting up to 2 grams per kilogram for women who are actively strength training. This means a woman weighing 70kg needs approximately 84 to 112 grams of protein per day, spread across meals, with particular emphasis on a strong protein source at breakfast and after resistance training.
Good sources include eggs, poultry, fish, lean red meat, Greek yoghurt, cottage cheese, tofu, tempeh, legumes, and high-quality protein supplements when needed. For women following a plant-based diet, paying careful attention to combining complementary protein sources and potentially supplementing with specific amino acids like leucine (which is critical for muscle protein synthesis) is important.
Magnesium: The Master Mineral
Magnesium is involved in over 300 enzymatic reactions in the body, including energy production, muscle and nerve function, blood sugar regulation, sleep, mood, and bone health. It is arguably the single most important mineral for women in midlife, and deficiency is extremely common.
Magnesium supports GABA activity in the brain, which promotes calm and supports sleep. It helps regulate cortisol, reducing the impact of chronic stress. It supports healthy blood sugar metabolism and insulin sensitivity. It is essential for bone mineralisation — your bones need magnesium just as much as they need calcium. And it can reduce muscle cramps, headaches, and the intensity of hot flushes.
Dietary sources include dark leafy greens, nuts, seeds, avocados, dark chocolate, and legumes. However, soil depletion, food processing, and the increased demands of stress and hormonal change mean that many women benefit from supplementation. Magnesium glycinate is well-absorbed and particularly supportive of sleep and mood. Magnesium threonate crosses the blood-brain barrier and may support cognitive function. A dose of 200 to 400mg of elemental magnesium per day is a reasonable starting point for most women.
Omega-3 Fatty Acids: For Inflammation, Brain, and Heart
Omega-3 fatty acids, particularly EPA and DHA, are among the most well-researched nutrients for midlife health. They reduce systemic inflammation, support cardiovascular health (which becomes increasingly important after menopause), protect brain function and mood, support joint health, and help maintain the integrity of cell membranes throughout the body.
The best dietary source is oily fish: salmon, mackerel, sardines, anchovies, and herring. Aim for two to three servings per week. For women who do not eat fish regularly, a high-quality fish oil supplement providing at least 1000mg of combined EPA and DHA per day is worth considering. Plant-based sources like flaxseed, chia seeds, and walnuts provide ALA, which the body converts to EPA and DHA, but the conversion rate is very low — typically less than 5 per cent. Women on plant-based diets may benefit from an algae-based omega-3 supplement.
Vitamin D: More Than a Bone Nutrient
Vitamin D functions more like a hormone than a vitamin, and it plays a role in bone health, immune regulation, mood, cardiovascular function, and hormonal balance. After menopause, the risk of osteoporosis increases significantly, and vitamin D is essential for calcium absorption and bone mineralisation.
Deficiency is widespread, particularly in women who live in northern latitudes, spend most of their time indoors, or have darker skin. Testing your vitamin D level is straightforward and worthwhile. Optimal levels are generally considered to be between 100 and 150 nmol/L (40-60 ng/mL). Supplementation with vitamin D3 alongside vitamin K2 (which directs calcium into bones rather than soft tissues) is the most effective approach. Doses vary depending on your starting level, but 1000 to 4000 IU per day is common under practitioner guidance.
B Vitamins: Energy, Mood, and Methylation
The B vitamins work as a team to support energy production, neurotransmitter synthesis, hormone metabolism, and a process called methylation, which is involved in detoxification, DNA repair, and the regulation of gene expression. Several B vitamins deserve particular attention in midlife.
Vitamin B6 supports the production of serotonin, GABA, and dopamine — neurotransmitters that directly affect mood, sleep, and anxiety. It also plays a role in progesterone production and can help with premenstrual symptoms. Vitamin B12 is essential for energy, cognitive function, and nerve health. Deficiency can cause fatigue, brain fog, mood disturbance, and numbness or tingling in the extremities. It is more common in women over 50 because stomach acid production (which is needed to absorb B12 from food) tends to decrease with age. Folate (vitamin B9) works alongside B12 in methylation and is important for cardiovascular health and mood. The active form, methylfolate, is preferable for women who have MTHFR gene variants that affect folate metabolism.
Zinc, Selenium, and Iodine: Thyroid and Immune Support
These three trace minerals are critical for thyroid function and immune regulation, both of which can be affected during perimenopause and menopause.
Zinc supports immune function, skin health, hormone production, and wound healing. It is also involved in insulin signalling and can be depleted by stress, alcohol, and the oral contraceptive pill. Food sources include oysters, red meat, poultry, pumpkin seeds, and chickpeas. Supplementation of up to 30mg per day (taken with food to avoid nausea) is generally safe.
Selenium is a key nutrient for thyroid health, helping convert inactive T4 thyroid hormone to the active T3 form. It also reduces thyroid antibodies in autoimmune thyroid disease and supports antioxidant defences. Just two to three brazil nuts per day can provide a therapeutic dose, or a supplement providing 100 to 150mcg per day.
Iodine is important for thyroid function, breast health, and immune regulation. However, supplementation needs to be approached carefully, particularly in the presence of autoimmune thyroid disease, where excessive iodine can worsen the condition. Testing thyroid antibodies before supplementing with iodine is important.
Creatine: An Emerging Nutrient for Midlife Women
Creatine is one of the most well-researched supplements in sports science, but it is increasingly being recognised for its benefits beyond athletic performance, particularly for women in midlife. Creatine supports cellular energy production in muscle and brain tissue. It can improve strength, power, and recovery from resistance training. Emerging research suggests it may also support cognitive function, mood, and bone health.
Women naturally have lower creatine stores than men, and those stores can decline further with age and reduced oestrogen. A daily dose of 3 to 5 grams of creatine monohydrate is well-researched, safe, and increasingly recommended for midlife women who are strength training. It is one of the few supplements with a very strong evidence base and minimal side effects.
Why Food Alone May Not Be Enough
I always start with food. A nutrient-dense diet built around whole, unprocessed foods, adequate protein, plenty of vegetables, healthy fats, and quality carbohydrates is the foundation of everything. But there are several reasons why food alone may not meet the increased demands of midlife.
Soil depletion has reduced the nutrient density of many foods over recent decades. Chronic stress increases the body’s use of certain nutrients, particularly magnesium, B vitamins, and zinc. Hormonal changes alter nutrient requirements and absorption. Digestive changes in midlife — including reduced stomach acid production — can impair the absorption of nutrients like B12, iron, and calcium. And the anti-inflammatory, neuroprotective, and metabolic demands of this transition can be difficult to meet through food alone.
This is not a reason to take everything. It is a reason to be strategic. Understand what your body needs most during this stage, test where possible, and use targeted supplementation to fill the gaps that your diet cannot cover. Working with a qualified practitioner who can assess your individual needs and help you build a personalised plan is always the most effective approach.
The Bottom Line
Nutrition in midlife is not about perfection. It is about understanding that your body’s needs have shifted and responding to that shift with intelligence and care. The nutrients outlined in this article are not an exhaustive list, but they are the ones I see making the most meaningful difference for women in perimenopause and menopause. Start with the foundations — protein, magnesium, omega-3s, and vitamin D — and build from there based on your symptoms, your testing, and your goals.
Your body is not asking for less during this transition. It is asking for more. More of the right inputs, more of the right support, and more of the kind of attention that treats nutrition as a genuine tool for health rather than just a way to manage weight.