Do you find yourself noticing thinner strands, or a widening part on your scalp? Many people with PCOS experience hair thinning, and it can be upsetting. In my practice, I often see clients wondering whether a tweak to their plate could help their hair. The honest answer is that food is one part of the picture, a part worth looking after while the other aspects of PCOS are looked after elsewhere.
Understanding PCOS-Related Hair Loss
Hair thinning in PCOS is usually linked with higher androgen levels, including testosterone being converted to dihydrotestosterone (DHT). DHT is thought to shrink hair follicles, leading to the “miniaturisation” seen on the crown and frontal scalp. Hair thinning has many possible causes, which is why it deserves a proper medical assessment. Research suggests that diet and lifestyle can influence insulin and hormone activity, both of which are connected with androgens.
Nutrients Linked With Hair Follicle Health
Research suggests that certain nutrients play a role in hair growth and scalp health. This is a quick guide to where they are found in everyday food. I do not recommend or prescribe supplements, and the evidence for adding them in people who are not deficient is mixed.
- Biotin (vitamin B7): involved in keratin production; found in eggs, nuts and wholegrains.
- Vitamin D: low levels have been associated with hair shedding; oily fish and eggs provide some.
- Zinc: involved in protein synthesis in hair cells; found in pumpkin seeds, shellfish and lentils.
- Iron: low iron has been associated with hair shedding; found in red meat, pulses, leafy greens and fortified cereals.
- Omega-3 fatty acids: studied for their role in inflammation; found in fatty fish like salmon or plant sources such as chia.
Foods to Embrace and Foods to Limit
Steadier blood glucose is of particular interest in PCOS because insulin resistance is thought to drive excess androgen production. Research indicates that a diet high in refined carbs and sugary drinks can lead to sharper insulin responses. Here is a concise food list you can start with:
- Lower-glycaemic carbs: Whole oats, quinoa, sweet potatoes and legumes tend to give a slower rise in blood glucose.
- Protein: Poultry, fish, eggs, tofu and dairy support muscle and hair, which is made of protein.
- Colourful vegetables: Broccoli, kale and peppers provide antioxidants and a range of micronutrients.
- Healthy fats: Avocado, nuts and extra-virgin olive oil are good everyday choices.
- Go easier on: Processed snacks and sugary beverages, which tend to crowd out nutrient-dense foods.
These choices also align with the PCOS/PMOS nutrition approach I share with clients who want food-focused support.
Sample Meal Ideas for Everyday Support
Below are a few meals that combine the foods discussed above. They are inspiration rather than a full plan, so you can mix and match according to your preferences.
- Breakfast: Greek yoghurt topped with mixed berries, ground flaxseed and a sprinkle of pumpkin seeds.
- Mid-morning snack: A boiled egg and a small apple.
- Lunch: Quinoa salad with grilled salmon, spinach, cherry tomatoes, avocado and a lemon and olive oil dressing.
- Afternoon snack: Carrot sticks with hummus and a handful of walnuts.
- Dinner: Stir-fried tofu with broccoli, peppers and brown rice, seasoned with turmeric and black pepper.
These meals bring together a spread of biotin, zinc, iron and omega-3 fats from food, alongside steadier carbohydrates, as part of an overall balanced diet.
If you are considering cutting out gluten, my article on gluten-free and PCOS explains what the research does and does not show.
Lifestyle Factors That Complement Nutrition
Nutrition works best when paired with other supportive habits. Research highlights that stress, poor sleep and smoking can all affect hair health. I encourage my clients to build a regular sleep routine, find stress-easing habits such as mindfulness that they enjoy, and stay physically active.
If weight is also on your mind, research suggests modest weight change may be associated with changes in androgen levels for some women. My weight loss resources take a gentle, food-focused view of this.
Finally, hair thinning is worth having properly assessed, and any significant dietary change deserves care if you take medication for PCOS. I work alongside your doctor on the medical side of hair loss, such as checking for other causes and any treatment, while I support you with food choices and everyday habits.
If you are eating a varied diet and still feel unsure what to focus on, one-to-one support can help you look at your meals, your routine and the foods you enjoy, and shape a plan that fits your life. Take a look at my services page to see how a one-to-one online consultation works, and contact me to get started.
