Polycystic Ovary Syndrome (PCOS) — also known as Polyendocrine Metabolic Ovarian Syndrome (PMOS) following the recent international naming review — affects up to 1 in 10 women of reproductive age in the UK. As a registered nutritionist, I regularly work with women managing PCOS, and one of the most effective tools we have is food. The right dietary choices can support insulin sensitivity, reduce inflammation, and help regulate hormonal balance. Here are the foods I recommend prioritising in my PCOS nutrition consultations.
Foods That Support Insulin Sensitivity
Insulin resistance is a key driver of PCOS symptoms for many women. Choosing low-glycaemic-index foods helps keep blood sugar levels stable throughout the day:
- Legumes — chickpeas, lentils, and black beans are excellent sources of plant protein and fibre. They release energy slowly, preventing blood sugar spikes. Try my Mediterranean Chickpea Shakshuka for a satisfying meal.
- Whole grains — oats, quinoa, and brown rice provide sustained energy. My Overnight Oats with Flaxseed, Berries & Cinnamon is a perfect PCOS-friendly breakfast.
- Non-starchy vegetables — leafy greens, broccoli, cauliflower, and courgettes are low in calories but rich in fibre and micronutrients.
For practical advice on managing blood sugar levels naturally, read my dedicated guide.
Anti-Inflammatory Foods
Chronic low-grade inflammation is common in PCOS and can worsen symptoms. Including anti-inflammatory foods in your diet can make a real difference:
- Turmeric and ginger — both contain powerful anti-inflammatory compounds. My Anti-Inflammatory Turmeric & Ginger Porridge is a warming way to start the day.
- Omega-3 fatty acids — found in walnuts, flaxseeds, chia seeds, and hemp seeds. These support hormonal health and reduce inflammation.
- Colourful vegetables and berries — the antioxidants in deeply coloured produce help combat oxidative stress associated with PCOS.
For more on this topic, see my article on foods that reduce inflammation naturally.
Healthy Fats for Hormonal Balance
Hormones are built from fats, so it is essential to include quality fat sources in a PCOS diet:
- Avocado — rich in monounsaturated fats and fibre. My Avocado and Oat Breakfast Bowl combines healthy fats with slow-release carbohydrates.
- Nuts and seeds — almonds, walnuts, pumpkin seeds, and sunflower seeds provide zinc, magnesium, and vitamin E, all of which support reproductive health.
- Olive oil — a staple of the Mediterranean diet, which research consistently links to improved PCOS outcomes.
Some women also explore seed cycling for hormone balance as a complementary approach.
Fibre-Rich Foods
Fibre plays a crucial role in PCOS management by supporting gut health, aiding hormone metabolism, and promoting satiety:
- Vegetables — aim for at least five portions daily, with an emphasis on variety.
- Beans and pulses — a serving with lunch and dinner provides both protein and fibre.
- Flaxseeds — ground flaxseeds contain lignans, which may support oestrogen metabolism.
Foods to Be Mindful Of
While I do not advocate strict elimination diets for PCOS, being mindful of certain foods can help:
- Refined carbohydrates — white bread, pastries, and sugary cereals can cause rapid blood sugar spikes.
- Added sugars — fizzy drinks, sweets, and flavoured yoghurts can worsen insulin resistance.
- Highly processed foods — these often contain trans fats and additives that may promote inflammation.
The goal is not perfection but progress. Small, consistent changes to your diet can make a meaningful difference over time.
Putting It All Together
If you are looking for a structured approach, I have created a practical 7-day vegetarian PCOS diet plan using recipes from my collection, designed around these principles.
If you would like personalised support with PCOS nutrition, I offer one-to-one online consultations. View my consultation packages or book a free discovery call to discuss how I can help.