Nutrition for Women’s Health: An Evidence-Based Guide to Hormones, Fertility and Healthy Aging
Medically reviewed and updated by Dr. Pamela Frank, Toronto Naturopath, Nov 2026
Nutrition is one of the most important foundations of women’s health. What you eat influences blood sugar regulation, insulin sensitivity, hormone metabolism, reproductive function, cardiovascular health, bone density, and even brain function.
A woman’s nutritional needs also change throughout her life. The requirements of someone experiencing irregular periods or polycystic ovary syndrome (PCOS) may differ considerably from those of someone trying to conceive, navigating perimenopause, or maintaining bone and cardiovascular health after menopause.
In my naturopathic practice, I have seen how much attention to nutrition for women can contribute to better health outcomes. Since 1999, I have worked with women experiencing a wide range of hormone-related concerns, including PCOS, endometriosis, irregular periods, infertility, acne, hair loss, and menopausal symptoms.
My approach combines a strong foundation in nutritional science with an understanding of the underlying physiology. As a former medical laboratory technologist, I also appreciate the value of investigating potential nutritional deficiencies and metabolic concerns through appropriate laboratory testing.
Let’s explore how nutrition supports women’s health throughout life and how to make dietary choices that are practical, sustainable, and evidence-informed.
How Nutrition for Women Influences Hormonal Health
Hormones are chemical messengers that regulate many of the body’s essential functions. They influence menstrual cycles, ovulation, metabolism, appetite, sleep, mood, bone health, and reproductive function.
Nutrition influences several systems involved in hormone regulation, particularly insulin metabolism, thyroid function, nutrient availability, and the production and metabolism of steroid hormones.
Blood sugar and insulin regulation
Insulin is a hormone produced by the pancreas that helps regulate blood glucose. When cells become less responsive to insulin, the pancreas may need to produce more insulin to maintain normal blood glucose levels.
Insulin resistance is particularly relevant to women with PCOS. Elevated insulin can stimulate ovarian androgen production and contribute to symptoms such as irregular ovulation, acne, and excess facial or body hair.
Dietary strategies that support healthy glucose regulation include:
- Including protein with meals to support satiety and help moderate post-meal glucose responses.
- Choosing fibre-rich vegetables, legumes, berries, nuts, seeds, and other minimally processed foods.
- Limiting carbohydrate-containing foods.
- Limiting frequent consumption of sugar-sweetened beverages and highly refined foods.
- Eating meals at reasonably consistent intervals that suit individual needs and routines.
The overall dietary pattern matters more than any single food or supplement.
Dietary fats and hormone production
Dietary fats provide essential fatty acids and support the absorption of fat-soluble vitamins A, D, E, and K.
Omega-3 fatty acids are particularly important for cardiovascular and cellular health. Good sources include:
- Salmon, sardines, trout, mackerel, herring, and other oily fish.
- Walnuts.
- Chia seeds.
- Ground flaxseed.
- Hemp hearts.
Unsaturated fats from olive oil, avocado, nuts, and seeds can also contribute to a heart-healthy dietary pattern.
Adequate dietary fat is important for normal physiology. Extremely restrictive eating patterns can make it difficult to meet essential nutrient requirements.
Fibre, estrogen metabolism, and digestive health
Dietary fibre supports bowel regularity, intestinal health, and the gut microbiome. Certain intestinal bacteria participate in the metabolism of estrogen through processes involving the estrobolome, a collection of microbial genes involved in estrogen metabolism.
Fibre also supports cardiovascular and metabolic health.
Excellent sources include:
- Broccoli, Brussels sprouts, and other cruciferous vegetables.
- Leafy greens.
- Berries and apples.
- Beans and lentils.
- Chia and ground flaxseed.
- Nuts and seeds.
A varied intake of plant foods helps provide the different types of fibre that support intestinal function.
Nutrition for Women with PCOS and Insulin Resistance
Polycystic ovary syndrome (PCOS) is a complex endocrine and metabolic condition affecting women during their reproductive years, and after menopause.
Insulin resistance is common in PCOS and can contribute to elevated androgen levels, irregular menstrual cycles, and metabolic complications. It is important to recognize that insulin resistance can occur in women with PCOS across a range of body sizes.
Nutrition and lifestyle interventions are central components of PCOS management.
The 2023 International Evidence-Based PCOS Guideline recommends individualized, sustainable dietary and lifestyle strategies. It also recognizes that there is no single dietary composition proven superior for all women with PCOS.¹ That’s because not all women have cystic ovaries for the same reason. For those with insulin resistance, and high androgens, low glycemic index, low glycemic load, and low carb is best.
What should women with PCOS eat?
A practical approach emphasizes:
Protein: Fish, poultry, eggs, lean meats, tofu, and legumes provide protein to support tissue maintenance and normal metabolic function.
Fibre-rich vegetables: Leafy greens, broccoli, cauliflower, zucchini, asparagus, and other vegetables provide fibre and micronutrients.
Lower-glycemic carbohydrate sources: Beans, lentils, and berries can help support a balanced dietary pattern.
Healthy fats: Olive oil, avocado, nuts, seeds, and oily fish provide unsaturated fats and essential fatty acids.
Adequate overall nutrition: Consistently meeting nutritional requirements supports energy, metabolic function, and reproductive health.
Is a low-carbohydrate diet beneficial for PCOS?
Some women find that reducing highly refined carbohydrates and emphasizing protein, vegetables, fibre, and healthy fats helps with glucose regulation and appetite.
A lower-carbohydrate dietary pattern may be appropriate for some individuals, depending on their health history, preferences, activity levels, and nutritional requirements.
However, the evidence does not establish one ideal carbohydrate intake for every woman with PCOS, but for those with high androgens, low carb is best. Sustainable dietary changes are important.
Why nutrition for women matters beyond reproductive symptoms
PCOS is associated with an increased risk of impaired glucose regulation, type 2 diabetes, dyslipidemia, and other cardiometabolic concerns.
A nutrition plan that supports insulin sensitivity and cardiovascular health can therefore be valuable throughout life, even when improving menstrual regularity or fertility is not the primary goal after menopause.
Nutrition for Women and Endometriosis
Endometriosis is an inflammatory, estrogen-dependent condition in which tissue resembling the lining of the uterus grows outside the uterus. It can cause pelvic pain, painful periods, digestive symptoms, and fertility difficulties.
Nutrition is an area of considerable interest among women with endometriosis because of the relationship between dietary patterns, inflammation, oxidative stress, and metabolic health.
Some observational research has examined associations between dietary patterns and endometriosis. However, clinical evidence has not established a particular diet as an effective treatment for the condition.
The European Society of Human Reproduction and Embryology (ESHRE) guideline recognizes the potential importance of general lifestyle measures while concluding that evidence is insufficient to recommend a specific nutritional intervention for reducing endometriosis-related pain.²
Dietary patterns worth considering
A Mediterranean-style dietary pattern tends to reduce inflammation and emphasizes:
- Colourful vegetables and fruit.
- Fish and other quality protein sources.
- Olive oil.
- Nuts and seeds.
- Legumes.
- Fibre-rich foods.
- A variety of minimally processed ingredients.
This pattern provides a broad range of nutrients associated with cardiovascular and metabolic health.
Omega-3 fatty acids are also of interest because they are involved in the regulation of inflammatory signalling. Sources include oily fish, walnuts, chia seeds, and flaxseed.
What about gluten-free and dairy-free diets?
Some women report digestive or other symptom improvements when they remove particular foods. These experiences deserve individual consideration, especially when there is an underlying food intolerance or gastrointestinal condition.
However, there is insufficient evidence to recommend universal gluten-free or dairy-free diets as treatments for endometriosis. This is where a naturopathic doctor who is knowledgeable in nutrition for women and endometriosis can consider your unique health characteristics when creating your customized treatment plan for endometriosis.
Nutrition for Women: Fertility and Preconception Health
Nutrition plays an important role in preparing the body for pregnancy. Adequate nutrient intake supports hormone balance, ovulation, reproductive function, early embryonic development, and maternal health.
Preconception nutrition for women is particularly important because some developmental processes begin before a woman knows she is pregnant.
Folate and folic acid
Folate is a B vitamin that is essential for DNA synthesis and cell division. Adequate folic acid intake before conception and during early pregnancy reduces the risk of neural tube defects.
Health Canada recommends a daily multivitamin containing 400 micrograms of folic acid for people who could become pregnant. Some individuals require a different dose based on their medical history and risk factors.³ Some individuals also require any folic acid supplementation to be in the active form of folic acid, known as L-5MTHF or L-5-methyl-tetra-hydro-folate because of MTHFR mutations.
Food sources of folate include:
- Spinach and other leafy greens.
- Asparagus.
- Broccoli.
- Avocado.
- Lentils and beans.
Iron
Iron is required for hemoglobin production and oxygen transport. Menstruating women are particularly susceptible to iron deficiency, especially when menstrual bleeding is heavy.
Iron requirements increase during pregnancy to support the expanded maternal blood supply and fetal development.
Good dietary sources of iron include:
- Lean red meat.
- Poultry and seafood.
- Lentils and beans.
- Tofu.
- Pumpkin seeds.
- Iron-fortified foods.
Vitamin C improves the absorption of non-heme iron from plant foods. Combining beans or lentils with vegetables rich in vitamin C is one practical example.
Ferritin, a full iron panel and a complete blood count (CBC) can help investigate iron status when clinically indicated.
Vitamin B12
Vitamin B12 is essential for red blood cell formation, DNA synthesis, and neurological function.
Because B12 is exclusively found naturally in animal foods, women following vegetarian or vegan diets may have an increased risk of inadequate intake, particularly when they consume few fortified foods.
Food sources for vitamin B12 include fish, meat, eggs, dairy products, and fortified plant-based foods.
Vitamin D
Vitamin D contributes to calcium absorption, bone health, and normal immune function.
Food sources include fatty fish, egg yolks, and fortified foods. Vitamin D status warrants assessment in women with relevant risk factors or clinical concerns related to vitamin D deficiency.
Other nutrients important for reproductive health
Zinc, iodine, selenium, choline, and omega-3 fatty acids also contribute to normal physiological processes involved in reproduction and pregnancy.
A varied diet is an important starting point. Supplementation should be based on pregnancy planning, dietary intake, medical history, and individual requirements.
Nutrition for women can support reproductive health, although dietary changes alone cannot guarantee conception or overcome every cause of infertility. Thorough naturopathic fertility assessment and hormonal testing allows a fertility treatment approach that is customized to your specific needs.
Nutrition for Women During Perimenopause and Menopause
The transition through perimenopause and menopause brings substantial changes in estrogen and progesterone production.
These changes influence sleep, body temperature regulation, cardiovascular risk factors, insulin sensitivity, body composition, and bone density.
Nutrition for women becomes particularly important during this stage of life because several health priorities change simultaneously.
Protein and muscle maintenance
Maintaining muscle mass becomes increasingly important with age. Adequate protein intake, together with regular resistance exercise, supports muscle maintenance and physical function.
Good protein sources include:
- Fish and poultry.
- Eggs.
- Greek yogurt and cottage cheese.
- Tofu and tempeh.
- Beans and lentils.
- Nuts and seeds.
Protein requirements vary with age, activity, health status, and individual circumstances.
Calcium and vitamin D for bone health
Estrogen plays an important role in maintaining bone density. The decline in estrogen associated with menopause accelerates bone loss in many women.
Calcium, magnesium, boron, manganese, zinc and vitamin D are essential nutrients for skeletal health.
Calcium-rich foods include:
- Dairy products, if these are well-tolerated. In many cases they are not. Adequate calcium can be obtained from non-dairy sources.
- Calcium-fortified plant beverages.
- Calcium-set tofu.
- Sardines with bones.
- Certain leafy green vegetables.
- Almonds.
Vitamin D sources include fatty fish, fortified foods, and appropriately selected supplements.
For bone density, calcium and vitamin D intake should be considered alongside blood sugar regulation, stress reduction, resistance exercise, weight-bearing activity, and individual osteoporosis risk.
Cardiovascular health
Cardiovascular risk factors can change during and after menopause.
A dietary pattern rich in vegetables, fruit, fibre, legumes, fish, nuts, seeds, and unsaturated fats supports cardiovascular health.
Limiting excess sodium, highly refined foods, and frequent consumption of processed meats can also be helpful.
Phytoestrogens and menopausal symptoms
Phytoestrogens are naturally occurring plant compounds with weak estrogen-like activity.
Soy foods contain isoflavones, while flaxseed contains lignans. These compounds have been studied for their potential effects on menopausal symptoms.
Some research suggests that soy isoflavones may modestly reduce hot flashes in certain women. Results vary, and findings from studies of concentrated supplements cannot automatically be applied to ordinary foods.
Whole soy foods, such as tofu, tempeh, and edamame, can be nutritious components of a balanced diet.
Nutrition, Mood, and Women’s Mental Health
Nutrition for women also influences brain function and the availability of nutrients involved in neurological processes.
The relationship between diet and mental health is complex. Dietary patterns have been associated with differences in depression risk and mental well-being, although nutrition alone is not a treatment for anxiety or depression.
B vitamins and brain function
B vitamins participate in energy metabolism, nervous system function, and the synthesis of important neurological compounds called neurotransmitters, such as serotonin.
Of particular interest are:
- Folate.
- Vitamin B6.
- Vitamin B12.
Deficiencies can contribute to neurological (nervous system) or hematological (blood cell and bone marrow) problems, making appropriate assessment important when symptoms or risk factors are present.
Omega-3 fatty acids
EPA and DHA are long-chain omega-3 fatty acids involved in brain and cell membrane function.
Oily fish is a particularly good food source of Omega-3’s. Walnuts, flaxseed, and chia seeds provide alpha-linolenic acid (ALA), a plant omega-3 fatty acid that the body can convert to EPA and DHA, although conversion is limited and may not be successful.
The gut-brain connection
The gut and brain communicate through several pathways involving the nervous system, immune system, and microbial metabolites.
The intestinal microbiome is influenced by dietary fibre, overall food variety, stress, sugar intake, sleep, and exercise.
Vegetables, fruit, legumes, nuts, seeds, and fermented foods can contribute to a diverse dietary pattern that supports intestinal health.
Research into the gut-brain connection is advancing, although specific microbiome interventions for mental health remain an evolving area of study.
Important Nutrients for Women Throughout Life
Some nutrients deserve particular attention because requirements, dietary intake, or deficiency risks can change during different life stages.
| Nutrient | Why it matters | Food sources |
|---|---|---|
| Iron | Red blood cell production and oxygen transport | Meat, seafood, lentils, beans |
| Folate | DNA synthesis and early fetal development | Leafy greens, legumes, asparagus |
| Vitamin B12 | Neurological function and red blood cells | Fish, meat, eggs, fortified foods |
| Vitamin D | Calcium absorption and bone health | Fatty fish, fortified foods |
| Calcium | Bone and muscle function | Dairy, fortified beverages, calcium-set tofu, leafy greens, almonds, sardines with the bones |
| Magnesium | Muscle and nerve function | Nuts, seeds, legumes, leafy greens |
| Zinc | Immune function and cellular processes | Meat, seafood, legumes, seeds |
| Omega-3 fats | Cell membranes and cardiovascular health | Oily fish, walnuts, flaxseed |
| Iodine | Thyroid hormone production | Seafood, dairy, iodized salt |
Individual requirements depend on age, life stage, dietary pattern, health conditions, and laboratory findings.
Why Individualized Nutrition Matters
There is no single diet that is appropriate for every woman.
A dietary pattern that works well for someone with insulin resistance may need to be adapted for someone with digestive symptoms, pregnancy-related nutritional requirements, or a history of nutritional deficiencies.
In clinical practice, I consider several factors when developing nutritional recommendations:
Medical and reproductive history: Menstrual patterns, PCOS, endometriosis, fertility concerns, thyroid function, and menopausal status can all influence nutritional priorities.
Dietary assessment: Food preferences, dietary exclusions, meal patterns, protein intake, fibre intake, and potential nutrient gaps help identify areas that may benefit from attention.
Laboratory testing: Appropriate testing can help investigate iron status, blood glucose regulation, thyroid function, vitamin and mineral deficiencies, and other relevant metabolic concerns.
Lifestyle factors: Sleep, stress, physical activity, digestive health, and daily routines influence how practical and sustainable a nutrition plan will be.
Laboratory testing should be selected according to the clinical question. Testing can help identify specific concerns, while results need to be interpreted alongside symptoms, medical history, and other findings.
A personalized nutrition plan should be nutritionally adequate, realistic, and compatible with a woman’s lifestyle.
Practical Ways to Improve Nutrition for Women
Making meaningful dietary changes does not have to involve complicated meal plans or expensive specialty products.
Start with a few habits that can be maintained over time.
- Include protein with every meal. Choose fish, eggs, poultry, tofu, legumes, or other suitable protein sources.
- Eat a variety of vegetables. Include different colours and types throughout the week.
- Increase fibre gradually. Add vegetables, berries, nuts, seeds, and legumes according to digestive tolerance.
- Choose healthy fats. Use olive oil and include nuts, seeds, avocado, and oily fish.
- Pay attention to iron and calcium. These nutrients deserve particular consideration during menstruating years and after menopause.
- Stay adequately hydrated. Water requirements vary with activity, climate, and individual health.
- Build consistency. Regular, balanced meals can make it easier to meet nutritional needs.
- Review supplements periodically. Assess whether each supplement has a clear purpose and an appropriate dose.
The best dietary plan is one that meets your specific nutritional requirements and that you can maintain over the long term.
Frequently Asked Questions About Nutrition for Women’s Health
Can changing my diet help balance my hormones?
Nutrition can support the systems involved in hormone regulation, including insulin sensitivity, thyroid function, and normal hormone metabolism. The effects depend on the underlying condition and individual circumstances.
What are the best foods for female hormone health?
A varied dietary pattern containing vegetables, fruit, adequate protein, fibre-rich foods, nuts, seeds, and healthy fats provides nutrients needed for normal physiological function. There is no single food that balances all hormones.
Does sugar affect women’s hormones?
Frequent consumption of sugar-sweetened beverages, highly refined or high carbohydrate foods can contribute to poorer metabolic health. For women with insulin resistance or PCOS, dietary changes that support glucose regulation can be particularly useful.
Is a low-carb diet good for PCOS?
Some women with PCOS find a lower-carbohydrate dietary pattern helpful for managing blood glucose and insulin resistance. Research has not established one ideal carbohydrate intake for everyone with PCOS. For those women dealing with high androgens, a low-carb diet is appropriate. Nutritional adequacy and sustainability should guide dietary choices.
What should women eat during menopause?
Menopausal women should consume a balanced dietary pattern emphasizing adequate protein, calcium, vitamin D, fibre, vegetables, fruit, and unsaturated fats supports muscle, bone, and cardiovascular health during and after menopause.
Do I need supplements for women’s health?
Supplement requirements depend on dietary intake, life stage, medical history, symptoms, and individual risk factors. Iron, vitamin B12, vitamin D, folic acid, and other nutrients may require particular attention in certain circumstances. Appropriate naturopathic assessment can help determine which supplementation is warranted.
Can nutrition for women improve fertility?
Good nutrition for women supports reproductive function and prepares the body for pregnancy. A nutrient-rich dietary pattern is an important part of preconception care and can provide hormone balance that is critical for conception. Fertility also depends on factors that cannot be addressed through diet alone.
Conclusion: Nutrition Is a Foundation of Women’s Health
Nutrition for women influences their health at every stage of life. From menstrual health and insulin sensitivity to fertility, menopause, bone density, and cardiovascular health, the foods you eat contribute to many of your body’s essential processes.
Understanding your individual nutritional requirements can help identify opportunities to improve dietary quality, address nutrient deficiencies, and support long-term health.
In my practice, I combine nutritional counselling, evidence-informed naturopathic care, and appropriate laboratory investigation to help women understand their health concerns and develop practical strategies.
If you are experiencing hormone-related concerns, irregular periods, PCOS, endometriosis, fertility difficulties, or menopausal symptoms, a comprehensive assessment can help identify areas that deserve attention.
Dr. Pamela Frank, BSc(Hons), ND
Naturopathic Doctor in Toronto
In practice since 1999
Book a naturopathic consultation to discuss your health concerns and nutritional needs.
Nutrition for Women’s Health References:
- Teede HJ, Tay CT, Laven JJE, et al. Recommendations from the 2023 International Evidence-based Guideline for the Assessment and Management of Polycystic Ovary Syndrome. Hum Reprod. 2023;38(9):1655-1679. doi:10.1093/humrep/dead156. Read study.
- Becker CM, Bokor A, Heikinheimo O, et al. ESHRE guideline: endometriosis. Hum Reprod Open. 2022;2022(2):hoac009. doi:10.1093/hropen/hoac009. Read guideline.
- Public Health Agency of Canada. Folic acid, healthy pregnancy and neural tube defect prevention. Read Canadian recommendations.
- Health Canada. Applying Canada’s Dietary Guidelines: Nutrition considerations during pregnancy and to support breastfeeding. Read guidance.
- Health Canada. Applying Canada’s Dietary Guidelines: Advice on vitamin and mineral supplementation. Read guidance.
- Office on Women’s Health. Healthy eating and women. US Department of Health and Human Services. Read guidance.
- Reid RL, Blake J, Abramson BL, et al. Canadian Consensus on Female Nutrition: Adolescence, Reproduction, Menopause, and Beyond. Find publication.
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- Parletta, N., Zarnowiecki, D., Cho, J., Wilson, A., Bogomolova, S., Villani, A., … & O’Dea, K. (2017). A Mediterranean-style dietary intervention supplemented with fish oil improves diet quality and mental health in people with depression: A randomized controlled trial (HELFIMED). Nutritional Neuroscience, 20(6), 338-348.
- Dash, S., Clarke, G., Berk, M., & Jacka, F. N. (2015). The gut microbiome and diet in psychiatry: Focus on depression. Current Opinion in Psychiatry, 28(1), 1-6.

