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The PCOS Diet: Best Foods for Managing PCOS

By Erika Thiede, MS, RDN, CSSD

Published on April 19, 2022

Medically Reviewed by Natalie Olsen, MS, RDN

Polycystic Ovarian Syndrome (PCOS) is the most common hormone and metabolic condition affecting women of reproductive age. While it cannot be cured, research supports the effectiveness of diet changes in managing symptoms.

Written by
Erika Thiede, MS, RDN, CSSD
Registered Dietitian Nutritionist, Integrative and Functional Nutritionist
Erika Thiede is a Registered Dietitian Nutritionist with 10 years of experience in the field of nutrition. While at USC, Erika worked alongside the head sports dietitian, allowing her to realize her true passion was in the field of nutrition and dietetics. Erika completed her master’s degree at Loma Linda University and became a registered dietitian in 2015.
Medically Reviewed by
Natalie Olsen, MS, RDN, LD, ACSM-EP
Registered Dietitian, Certified Exercise Physiologist
Natalie is a registered dietitian, functional medicine practitioner and certified exercise physiologist with over 15 years experience in the health and wellness industry and holds a Master's degree in Human Nutrition and Functional Medicine through a collaborative program provided by the University of Western States and the Institute of Functional Medicine.
The PCOS Diet: Best Foods for Managing PCOS
Photo credit: iStock.com/MilosStankovic

What Is PCOS?

Polycystic ovarian syndrome (PCOS) affects 1 in 10 women of reproductive age. (1)

It is the leading cause of infertility and, if left untreated, may lead to type 2 diabetes and cardiovascular risk. (2)

While PCOS may present differently for each person, symptoms most often include the following hormonal imbalances:

  • Elevated luteinizing hormone (LH): LH helps control your menstrual cycle and stimulates the release of a mature egg from the ovaries. High levels of LH may affect ovulation. (3)
  • Lower follicle-stimulating hormone (FSH): FSH controls the menstrual cycle and stimulates the growth of eggs in the ovaries. Lower levels of FSH may lead to irregular periods and difficulty getting pregnant. (4)
  • Raised testosterone levels: Testosterone is a sex hormone. Elevated levels may affect menstrual regularity and increase body weight, acne, and excess body and facial hair.(5)
  • Insulin resistance: Insulin is a hormone released by your pancreas that helps to control blood sugar. Insulin resistance means your body can make insulin but cannot use it effectively, increasing the risk of type 2 diabetes. (6)

Research indicates that insulin resistance may contribute to or worsen symptoms of PCOS and may play a role in increasing testosterone levels. (7)

Helping restore hormone balance and addressing insulin sensitivity are important goals for managing PCOS.

Although PCOS cannot be cured entirely, research indicates that diet may help manage symptoms. (8)

Choose Complex Carbohydrates

According to research, about 65%–70% of women with PCOS exhibit insulin resistance, which influences blood sugar. (9)

Increased insulin levels may induce excess testosterone production and increase levels of luteinizing hormone. (9)

The good news is that your blood sugar is highly responsive to lifestyle changes.

The first step is understanding that simple carbohydrates, such as sugar and processed foods, are the primary nutrients that directly raise your blood sugar.

It is also important to manage the amount of carbohydrates you consume in one meal to improve insulin response and blood sugar levels.

Specific carbohydrate needs will vary based on the individual, but you can use the “plate method” as general guidance.

On a 9-inch plate, fill half of it with non-starchy vegetables, a quarter of it with protein-rich foods, and the other quarter with carbohydrate-rich foods. (10)

Research supports the effectiveness of limiting the intake of high-sugar carbohydrates to manage PCOS.

One small study involving 24 women who followed a low starch diet for eight weeks experienced weight loss, improved insulin sensitivity, and decreased testosterone levels.

Women in this study excluded all grains, beans, and dairy products besides 1 ounce of cheese daily. They focused on low-sugar fruits, such as berries, oranges, apples, and plums, and included lean proteins and healthy fats with plenty of vegetables. (7)

While this study is helpful in understanding the effect of carbohydrates in PCOS, you do not need to eliminate all grains and legumes to help manage blood sugar and improve your symptoms.

Instead, focus on the right amounts of whole, high fiber foods, and limit processed and refined grains. Also, include plenty of non-starchy vegetables.

Some ideas include:

  • Quinoa
  • Barley
  • Oat Bran
  • Oats
  • Millet
  • Lentils
  • Peas
  • Beans
  • Zucchini
  • Leafy greens
  • Sweet potato
  • Avocado
  • Broccoli
  • Cauliflower

Additionally, fiber is essential in managing your body's response to carbohydrates. It is a non-digestible carbohydrate and helps control the amount of sugar released into the bloodstream. (11)

Fiber also helps you feel full faster, which can deter overeating. (12)

Finally, research has shown that combining fiber-rich carbohydrates with a protein-rich food can further reduce the impact of sugar. (13)

Examples of this include:

  • An apple with peanut butter.
  • Whole grain bread with turkey and cheese.
  • Carrots and hummus.
  • Cottage cheese and berries.
  • Sweet potato with grilled chicken and green beans.


Focus on whole-food, high-fiber carbohydrate sources like vegetables, legumes, and whole grains to best manage blood sugar. Limit starchy carbohydrate intake to about a quarter of your plate and make half your plate non-starchy vegetables. Make it a goal to always pair your carbohydrate with a protein for the best blood sugar response.

Go for Omega-3 Fatty Acids

Research has found that insulin resistance is present in about 75%–95% of individuals with PCOS. (14)

Additionally, studies have discovered a chronic presence of low-level inflammation as a symptom of PCOS, possibly relating to insulin resistance. (15)

Therefore, improving insulin sensitivity and inflammation levels are essential goals for PCOS management.

Diets high in saturated fat and trans-fat may decrease insulin sensitivity and increase the risk of type 2 diabetes. (16)

Instead, diets rich in omega-3 fatty acids have shown a positive impact on improving insulin sensitivity and metabolic function. (17)

Furthermore, research supports the role of omega-3 fatty acids in decreasing inflammation. (18)

You can get an adequate amount of omega-3 fatty acids through your diet.

Good sources include:

  • Seafood  such as salmon, mackerel, tuna, sardines, herring
  • Nuts and seeds including flaxseeds, chia seeds, walnuts, hemp seeds
  • Oils such as flaxseed oil and fish oil
  • Fortified foods such as eggs, milk, or juices


Eating a varied diet with adequate omega-3 intake and low in saturated fats and trans-fat may help improve inflammation, insulin resistance, and metabolic function.

Fuel Up on Anti-inflammatory Foods

Research has found that women with PCOS were more susceptible to stress. (19)

As a result, PCOS may increase cardiovascular risk, such as impaired endothelial functioning. (20)

Endothelial dysfunction is when the endothelial layer, the inner lining of the small arteries around the heart, fails to perform its essential functions.

Research illustrates a diet high in anti-inflammatory foods may help stress-associated cardiovascular risk and insulin resistance. (18)

Anti-inflammatory foods contain substances called antioxidants.

Antioxidants help to combat free radicals in the body.

Free radicals are molecules that can lead to cell damage and cause inflammation and stress throughout the body.

A diet high in anti-inflammatory foods should include the following:

  • Fatty fish such as tuna and salmon
  • Fruit such as blueberries, blackberries, strawberries, and cherries
  • Vegetables including kale, spinach, and broccoli
  • Beans and legumes
  • Nuts and seeds
  • Olives and olive oil
  • Spices such as turmeric, garlic, and ginger

Finally, limiting overly processed and high sugar foods will help to decrease inflammation throughout the body. (21)


While no single food can boost a person's health, including a variety of colorful fruits and vegetables, nuts and seeds, spices, and fatty fish in your diet can help increase your intake of antioxidant-rich foods to combat inflammation and manage PCOS symptoms.

Address Vitamin D Deficiency

Studies have shown that vitamin D plays an essential role in metabolic pathways, and a deficiency in the vitamin may contribute to the development of insulin resistance. (22)

A 2012 study found that around 85% of women with PCOS had low levels of vitamin D. (23)

Additionally, there is evidence that vitamin D supplementation may improve menstrual regularity and insulin sensitivity in women with PCOS. (23)

While our body creates vitamin D from absorbing direct sunlight, you can increase your vitamin D through supplementation and fortified foods.

Some food sources of vitamin D include:

  • Salmon
  • Tuna canned in olive oil
  • Mushrooms
  • Fortified eggs, specifically the yolk
  • Fortified orange juice
  • Fortified milk and dairy products
  • Fortified cereals

If you are interested in supplementing with vitamin D, it is best to request blood work from your medical provider to take the most appropriate dose.


While the body makes vitamin D by absorbing direct sunlight, you can increase your intake through fortified foods and supplementation. Vitamin D may play a critical role in menstrual regulation and insulin sensitivity.

Ensure Adequate Mineral Intake

Research has found a correlation between women with reduced magnesium levels and high testosterone levels and insulin resistance. (24, 22)

Additionally, there is a similar link between decreased selenium levels and elevated testosterone, most commonly seen in women with PCOS. (22)

Knowing that selenium and magnesium may impact testosterone levels and insulin's action in the body, it is worth taking extra care to include these in your diet.

Foods rich in magnesium include:

  • Enriched whole-grains
  • Dark leafy greens such as kale, spinach, and collard greens
  • Nuts and seeds including pumpkin seeds, almonds, and cashews
  • Beans and legumes

Foods rich in selenium include:

  • Brazil nuts
  • Tuna
  • Halibut
  • Turkey
  • Chicken


Both magnesium and selenium are important trace minerals that play a role in reproductive health. Additionally, they may be involved in protecting against insulin resistance and elevated testosterone levels.

Pump Up the Protein

A six-month study evaluating the effects of a high protein diet in PCOS management found an improvement in glucose metabolism. (25)

Additionally, studies have shown that protein stimulates the action of glucagon, a hormone that counteracts the action of insulin. (26)

Eating an appropriate amount of protein can help balance glucagon and insulin levels in the blood, which may protect the body against insulin resistance.

To ensure adequate protein in your daily diet, include a protein source with every meal and snack, such as:

  • Lean meats including beef, lamb, veal, pork
  • Poultry such as chicken and turkey
  • Fish and seafood such as fish, prawns, crab, lobster, oysters, scallops, clams
  • Eggs
  • Dairy products such as milk, unsweetened yogurt (especially Greek yogurt), cottage cheese
  • Nuts and seeds including peanut butter, almond butter, almonds, cashews, and hemp seeds
  • Beans and legumes such as lentils, black beans, kidney beans, edamame, and green peas
  • Tofu


Including an adequate amount of protein in your diet is essential for PCOS management. Protein may help decrease insulin resistance by balancing the amount of glucagon in the bloodstream. Include a variety of protein sources to ensure optimal intake.

Supplements to Consider

As noted, a significant component in PCOS management is addressing insulin resistance.

Therefore, many women with PCOS are prescribed Metformin, a medication intended for diabetes and blood sugar management.

For some, medication leads to stomach discomfort and other unwanted side effects.

While it is necessary to work with your medical practitioner, there may be more natural supplements you can try to support your insulin and hormones.


Research has found that inositols act as a second messenger for insulin, and deficiency may contribute to the various features of PCOS. (27)

The two most researched forms of inositols include myo-inositol and d-chiro-inositol. Both have been shown to improve PCOS symptoms. (27)

Furthermore, research has found that supplementation with 4000 mg, or 4 grams, of myo-inositol per day improved egg quality and fertilization rates in individuals with PCOS.

Women in this study also supplemented 400 micrograms of folic acid. (28)

Finally, a meta-analysis comparing Metformin to inositol found that both treatments effectively lowered glucose, fasting insulin, and estrogen. (29)

Inositol was more effective at reducing testosterone and demonstrated better pregnancy rates. (29)


Inositol may be an effective alternative to Metformin in women who do not tolerate Metformin or would like an alternative option. Before beginning any supplementation, be sure to check with your practitioner.

NAC (N-Acetyl-Cysteine)

NAC is an amino acid that helps the body make antioxidants.

Research has shown that Metformin and NAC appear to have comparable effects on testosterone levels, insulin, and menstrual irregularity in women with PCOS. (30)

Dosages range from 1.8–3 grams per day. However, it is best to work with your practitioner to identify what is best for you.


NAC is a supplement worth considering if you have been diagnosed with PCOS. As always, speak with your medical practitioner before beginning any supplementation.

Sample Week Meal Plan

Here is a sample one-week menu plan that includes foods to best support your PCOS.


  • Breakfast: Scrambled eggs with spinach, tomatoes, and mushrooms, and sprouted wheat bread topped with avocado.
  • Lunch: Greek salad topped with grilled salmon and a side of mixed berries.
  • Snack: Veggies and hummus.
  • Dinner: Roasted chicken and veggies with a baked sweet potato.


  • Breakfast: Chia seed pudding (chia seeds mixed with yogurt or almond milk) topped with pecans and banana slices.
  • Lunch: Roasted chicken, spinach, tomato, hummus, and avocado in a whole grain wrap.
  • Snack: Apple slices and unsweetened almond butter for dipping.
  • Dinner: Quinoa and black bean stuffed bell peppers.


  • Breakfast: Greek omelet.
  • Lunch: Open-faced veggie tuna salad sandwich on whole-grain bread, or leftovers from last night’s dinner.
  • Snack: A handful of lightly roasted nuts such as cashews, almonds, pecans, Brazil nuts.
  • Dinner: Grilled shrimp and veggie skewers with roasted potatoes.


  • Breakfast: Whole grain toast topped with avocado, sautéed spinach, and an over-easy egg.
  • Lunch: Arugula salad with leftover shrimp, goat cheese, tomatoes, avocado, and olive oil dressing.
  • Snack: 1/2 cup full fat, unsweetened Greek or coconut yogurt topped with fresh fruit and a light drizzle of honey.
  • Dinner: Pan-seared fish with roasted asparagus and butternut squash.


  • Breakfast: Smoothie with banana, avocado, flax meal, spinach, and blueberries. Protein optional.
  • Lunch: Quinoa and chickpea tabbouleh.
  • Snack: Hardboiled egg with avocado mashed and spread on toasted whole-grain bread.
  • Dinner: Turkey burger and a green salad.


  • Breakfast: Protein banana pancakes.
  • Lunch: Lentil soup with a side salad.
  • Snack: Handful of roasted nuts and one piece of dark chocolate.
  • Dinner: Grass-fed beef Bolognese over spaghetti squash or lentil pasta.


  • Breakfast: Cottage cheese or a dairy-free option, like cashew yogurt, topped with fresh berries, almond slivers, and a drizzle of maple syrup.
  • Lunch: Egg and vegetable scramble with a side of toasted grain bread.
  • Snack: Olives and hummus with fresh vegetables.
  • Dinner: Chicken and veggie kebobs with Cous Cous.

The Bottom Line

With a healthy and balanced diet, you can see improvement in PCOS symptoms.

A well-balanced PCOS diet includes the following:

  • High fiber, low sugar carbohydrates.
  • Adequate omega-3 fatty acids.
  • Optimal intake of anti-inflammatory foods.
  • Sufficient vitamin D.
  • Enough mineral intake, specifically magnesium and selenium.
  • Proper intake of protein.
  • Supplementation if needed.

To make these changes more attainable, consider working with a Registered Dietitian specializing in PCOS to find an eating style and supplementation that works best for you.

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At WellnessVerge, we only use reputable sources, including peer-reviewed medical journals and well-respected academic institutions.

  1. Polycystic ovary syndrome - OASH, Office on Women's Health:
  2. Female infertility - Symptoms and causes - Mayo Clinic:
  3. Luteinizing Hormone (LH) Levels Test: MedlinePlus Medical Test:
  4. Follicle-Stimulating Hormone (FSH) Levels Test: MedlinePlus Medical Test:
  5. Testosterone Levels Test: MedlinePlus Medical Test:
  6. PCOS (Polycystic Ovary Syndrome) and Diabetes | CDC:
  7. Low Starch/Low Dairy Diet Results in Successful Treatment of Obesity and Co-Morbidities Linked to Polycystic Ovary Syndrome (PCOS) - PMC:
  8. Role of diet in the treatment of polycystic ovary syndrome - PMC:
  9. All Women With PCOS Should Be Treated For Insulin Resistance - PMC:
  10. Eating Well | ADA:
  11. Fiber | The Nutrition Source | Harvard T.H. Chan School of Public Health:
  12. The Role of Fiber in Energy Balance - PMC:
  13. Effects of Fat and Protein on Glycemic Responses in Nondiabetic Humans Vary with Waist Circumference, Fasting Plasma Insulin, and Dietary Fiber Intake | The Journal of Nutrition | Oxford Academic:
  14. Women with polycystic ovary syndrome have intrinsic insulin resistance on euglycaemic-hyperinsulaemic clamp - PubMed:
  15. Chronic Low Grade Inflammation in Pathogenesis of PCOS - PubMed:
  16. Relationship of dietary saturated fatty acids and body habitus to serum insulin concentrations: the Normative Aging Study | The American Journal of Clinical Nutrition | Oxford Academic:
  17. Comparative review of diets for the metabolic syndrome: implications for nonalcoholic fatty liver disease | The American Journal of Clinical Nutrition | Oxford Academic:
  18. Anti-Inflammatory Dietary Combo in Overweight and Obese Women with Polycystic Ovary Syndrome - PMC:
  19. Nutrients | Free Full-Text | Nutrition Strategy and Life Style in Polycystic Ovary Syndrome—Narrative Review | HTML:
  20. Polycystic ovary syndrome and cardiometabolic risk: Opportunities for cardiovascular disease prevention:
  21. Inflammation in Polycystic Ovary Syndrome: Underpinning of insulin resistance and ovarian dysfunction - PMC:
  22. (PDF) Nutritional management in women with polycystic ovary syndrome: A review study:
  23. Vitamin D in the aetiology and management of polycystic ovary syndrome - Wiley Online Library:
  24. Magnesium Intake Is Related to Improved Insulin Homeostasis in the Framingham Offspring Cohort:
  25. Effects of increased dietary protein-to-carbohydrate ratios in women with polycystic ovary syndrome | The American Journal of Clinical Nutrition | Oxford Academic:
  26. Postprandial Aminogenic Insulin and Glucagon Secretion Can Stimulate Glucose Flux in Humans | Diabetes | American Diabetes Association:
  27. The inositols and polycystic ovary syndrome - PMC:
  28. Management of women with PCOS using myo-inositol and folic acid. New clinical data and review of the literature:
  29. The effects of myo-inositol vs. metformin on the ovarian function in the polycystic ovary syndrome: a systematic review and meta-analysis - European Review for Medical and Pharmacological Sciences:
  30. Clinical, endocrine and metabolic effects of metformin vs N-acetyl-cysteine in women with polycystic ovary syndrome - PubMed: