PCOS Is Now Also Called PMOS

Polycystic ovary syndrome has historically been known as PCOS. In May 2026, an international initiative led by Monash University announced the new name polyendocrine metabolic ovarian syndrome, or PMOS.

The name was changed because the condition involves more than ovarian cysts. It can affect reproductive hormones, ovulation, skin, metabolic health, mental health, body weight, and long-term disease risk. Many people with the condition don’t have ovarian cysts at all.

PCOS will remain the more familiar term for some time. Clinicians, patients, medical records, websites, and search engines may use both names during the transition. This article uses PCOS as the primary term because “PCOS macros” is still what most people search for, while also acknowledging the newer PMOS terminology.

Symptoms can include irregular or absent periods, excess androgen activity, acne, unwanted facial or body hair, scalp hair thinning, fertility difficulties, insulin resistance, and psychological distress. Symptoms and severity vary widely.

A diagnosis can’t be made from body size, acne, irregular periods, or a calculator. PCOS or PMOS should be diagnosed and managed by a qualified healthcare professional.

Review the international evidence-based PCOS and PMOS guideline resources from Monash University.

What Are the Best Macros for PCOS?

There’s no single evidence-based macro ratio that’s best for everyone with PCOS.

You may see recommendations such as 40% carbohydrates, 30% protein, and 30% fat, or claims that everyone with PCOS should follow a low-carbohydrate or ketogenic diet. Those ratios can work for some people, but they aren’t universal medical prescriptions.

The international evidence-based PCOS guideline states that no single diet composition has demonstrated clear superiority for everyone with PCOS. It recommends sustainable healthy eating based on individual goals, preferences, and health needs while avoiding unnecessarily restrictive and nutritionally unbalanced diets.

A useful starting plan generally includes:

• Enough calories to support health, daily function, and your chosen goal.
• A consistent protein target that supports fullness and lean tissue.
• Carbohydrates selected and portioned according to activity, preference, medication, glucose response, and tolerance.
• Enough dietary fat to support nutrition, satisfaction, and meal quality.
• Fiber-rich foods and a varied, nutrient-dense eating pattern.

The best macro plan is one that addresses your nutritional needs, supports your medical care, and can be followed consistently without creating an unhealthy relationship with food.

Read the international evidence-based recommendations for PCOS management.

Use the free IIFYM Macro Calculator to estimate your starting calories and macros.

How Macro Tracking May Help With PCOS

Macro tracking isn’t a treatment for PCOS. Its value comes from helping you understand your current intake and create a repeatable structure.

It Can Make Protein Intake More Consistent

Many people discover that their normal meals contain less protein than they assumed. Breakfast may contain almost none, lunch may be small, and most of the day’s protein may be concentrated at dinner.

Tracking can help you distribute protein across the day and choose portions that support fullness, muscle retention, recovery, and training.

It Can Reveal Portion and Calorie Patterns

Calories often come from foods people don’t think to count, including cooking oil, dressings, creamers, drinks, sauces, restaurant toppings, snacks, and bites while preparing meals.

Tracking these foods isn’t about blame. It gives you complete enough information to determine whether your current calorie estimate is working.

It Can Improve Meal Structure

Seeing protein, carbohydrates, fats, and fiber together can help you build meals that are more balanced and filling. This can be especially useful when hunger, cravings, energy swings, or inconsistent meals are making adherence difficult.

It Can Reduce Unnecessary Food Rules

People with PCOS are often told to eliminate sugar, dairy, gluten, soy, fruit, grains, seed oils, or carbohydrates altogether.

Some people have allergies, intolerances, diagnosed conditions, personal preferences, or medical reasons to avoid specific foods. PCOS by itself doesn’t automatically require a long list of universal exclusions.

A flexible macro plan can include cultural foods, family meals, restaurant meals, and foods you enjoy while still supporting a structured intake.

It Can Support Better Adjustments

When your intake is reasonably consistent, you can compare it with changes in weight, measurements, hunger, energy, training, menstrual patterns, and laboratory values reviewed with your clinician.

This doesn’t make the data perfect, but it gives you a clearer basis for deciding whether to maintain the plan, adjust it, or seek additional medical guidance.

PCOS, Insulin Resistance, and Weight Management

Insulin resistance is common in PCOS, but it isn’t present in every person with the condition. It also can’t be diagnosed based on body weight, cravings, fatigue, or difficulty losing weight alone.

Insulin helps move glucose from the bloodstream into cells. When cells don’t respond to insulin as effectively as they should, the body may produce more insulin to help manage blood glucose. This can contribute to metabolic risk and may interact with reproductive hormone activity.

PCOS may also be associated with differences in appetite regulation, body-fat distribution, sleep, mood, and other factors that can make weight management harder for some people.

Harder doesn’t mean impossible, and it doesn’t mean calories no longer count.

Energy balance still influences body weight. PCOS may affect some of the biological and behavioral factors that influence energy intake, expenditure, hunger, and adherence. That’s different from saying someone with PCOS follows a completely different law of metabolism.

Blood glucose, insulin resistance, medication, fertility goals, and metabolic risk should be evaluated with your healthcare team.

Learn more from NIDDK about the relationship between PCOS and diabetes.

How to Calculate Macros for PCOS

A PCOS macro calculation follows the same core process used for other adults, with added attention to medical history, hunger, blood-sugar management, dieting history, medication, and sustainability.

Step 1: Estimate Your Resting Energy Needs

An online calculator uses a validated equation to estimate the energy your body uses at rest. It can’t directly measure your metabolism through a questionnaire.

Predictive equations are useful starting tools, but every equation has individual error. Your real-world response determines whether the estimate should stay the same or change.

Step 2: Estimate Total Daily Energy Expenditure

Your total daily energy expenditure includes:

• Energy used at rest.
• Daily movement and work activity.
• Planned exercise.
• Energy used to digest and process food.

Activity is one of the largest sources of error in online calculators. Choose the activity level that reflects your average week, not your most active day.

Step 3: Choose a Goal

Your goal may be to:

• Maintain your current weight.
• Prevent gradual weight gain.
• Lose body fat.
• Support resistance training and muscle gain.
• Improve meal consistency without focusing on weight.

Weight loss isn’t the only valid outcome. Balanced nutrition, increased activity, improved sleep, better strength, and consistent self-care can support health even when the scale doesn’t change.

Step 4: Use a Moderate Calorie Change

PCOS frustration often drives people toward very low calorie targets. Aggressive restriction can increase hunger, fatigue, food preoccupation, training decline, loss of lean tissue, and the likelihood of rebound eating.

For fat loss, use the smallest effective deficit you can follow consistently. For maintenance or muscle gain, use enough energy to support the goal without assuming that more or less is always better.

Step 5: Set Protein

Protein needs vary with body size, age, training, calorie intake, and health status. Many active adults use approximately 1.4 to 2.0 grams of protein per kilogram of body weight per day as a useful starting range.

People with kidney disease or another condition affected by protein intake should get individualized medical nutrition advice.

Step 6: Divide Remaining Calories Between Carbohydrates and Fat

After protein and basic nutrition needs are addressed, carbohydrates and fats can be adjusted according to preference, activity, hunger, training demands, medication, glucose goals, and tolerance.

You don’t need to force a standard ratio simply because you have PCOS.

Calculate your starting macros here.

How Much Protein Should You Eat With PCOS?

Protein supports muscle tissue, recovery, fullness, and meal structure. During a calorie deficit, adequate protein may help reduce the amount of lean tissue lost.

A reasonable starting range for many active adults is approximately 1.4 to 2.0 grams per kilogram of body weight per day. This is a general fitness range, not a PCOS-specific medical prescription.

Your ideal intake may depend on:

• Body size and body composition.
• Age.
• Resistance training.
• Total calorie intake.
• Food preferences.
• Kidney function and medical history.

Rather than eating most of your protein at one meal, distribute it across the day when practical.

Protein-Rich Foods

• Chicken, turkey, lean beef, and pork.
• Fish and seafood.
• Eggs and egg whites.
• Greek yogurt and cottage cheese.
• Tofu, tempeh, seitan, and soy foods.
• Beans, lentils, and legumes.
• Protein powder when useful for convenience.

Review the International Society of Sports Nutrition position stand on protein and exercise.

How Many Carbs Should You Eat With PCOS?

There’s no universal carbohydrate target for PCOS.

Some people feel better and find appetite easier to manage with a moderate reduction in carbohydrate intake. Others perform, recover, and adhere better with more carbohydrates.

The appropriate amount depends on:

• Total calorie needs.
• Physical activity and training.
• Medication.
• Glucose response.
• Food preferences.
• Digestive tolerance.
• Pregnancy or fertility goals.

Carbohydrates don’t need to be eliminated. They provide energy, fiber, vitamins, minerals, and enjoyment.

Choose Carbohydrates in Context

Useful carbohydrate sources can include:

• Fruit.
• Beans and lentils.
• Oats and whole grains.
• Potatoes and starchy vegetables.
• Rice, bread, pasta, and tortillas in suitable portions.
• Milk and yogurt.

Pairing carbohydrate-rich foods with protein, fiber, or dietary fat may improve fullness and create a more balanced meal.

What About the Glycemic Index?

The glycemic index describes how certain carbohydrate-containing foods affect blood glucose under controlled conditions. It can provide useful information, but it doesn’t account for portion size, mixed meals, food preparation, medication, activity, or individual response.

A food’s glycemic index also doesn’t tell you everything about its nutritional value.

Fruit, dairy, grains, and potatoes don’t need to be banned solely because someone has PCOS.

Do You Need a Low-Carbohydrate or Ketogenic Diet?

No. Lower-carbohydrate diets can be an option, but they aren’t required for everyone with PCOS.

A ketogenic diet may be difficult to sustain, may restrict nutritious foods, and may require medication adjustment or clinical supervision. It shouldn’t be presented as the automatic solution for every person with PCOS.

How Much Fat Should You Eat With PCOS?

Dietary fat supports cell function, nutrient absorption, meal satisfaction, and overall nutrition.

Fat provides nine calories per gram, so portion size can affect total calories faster than many people expect. Oils, dressings, nuts, cheese, creamers, and sauces are common places where tracked and actual intake differ.

Useful dietary fat sources can include:

• Olive oil.
• Avocado.
• Nuts and seeds.
• Nut and seed butter.
• Eggs.
• Fatty fish.
• Dairy foods that fit your preferences and needs.

You don’t need to fear dietary fat, but measuring calorie-dense portions during the learning phase can improve tracking accuracy.

Fiber and Food Quality Still Count

Matching calories and macros doesn’t guarantee that a diet provides enough fiber, vitamins, minerals, or food variety.

Fiber-rich foods may support digestive health, fullness, cholesterol management, and blood-sugar control.

Useful sources include:

• Vegetables.
• Fruit.
• Beans and lentils.
• Whole grains.
• Nuts and seeds.

Increase fiber gradually if your current intake is low. A sudden increase can worsen gas, bloating, or digestive discomfort.

There’s no need to create a false choice between flexible dieting and nutritious food. A strong macro plan includes both structure and food quality.

How to Build a Balanced Meal With PCOS

“PCOS-friendly” doesn’t describe one required list of foods. It describes a meal that supports your individual nutrition, fullness, energy, and medical needs.

A practical meal can include:

1. A meaningful protein source.
2. A carbohydrate portion suited to your target and activity.
3. A vegetable, fruit, or other fiber-rich food.
4. A suitable amount of dietary fat.
5. A portion that fits your daily calorie needs.

Example Breakfasts

• Greek yogurt with berries, oats, chia seeds, and measured nut butter.
• Eggs and egg whites with whole-grain toast, fruit, and avocado.
• Protein oats with fruit and seeds.
• Tofu scramble with potatoes and vegetables.

Example Lunches and Dinners

• Chicken, rice, vegetables, and olive-oil dressing.
• Salmon, potatoes, and roasted vegetables.
• Lean beef or tofu stir-fry with noodles and vegetables.
• Lentil bowl with grains, vegetables, yogurt, and herbs.
• Turkey or bean chili with rice and a side salad.

The exact foods can change according to culture, budget, allergies, preferences, and medical needs.

Sample Day of Macro Tracking With PCOS

This sample demonstrates meal structure. It isn’t a prescription and doesn’t provide a universal calorie or macro target.

Breakfast

Greek yogurt with berries, oats, chia seeds, and a measured serving of nut butter.

Lunch

Chicken or tofu bowl with rice, beans, vegetables, salsa, and avocado.

Snack

Fruit with cottage cheese, Greek yogurt, edamame, or another protein source.

Dinner

Salmon, lean meat, or tempeh with potatoes or grains and a large serving of vegetables.

Flexible Food

A measured serving of chocolate, dessert, chips, or another preferred food can fit when the overall day supports your calorie and nutrition goals.

The point isn’t to copy this menu. It’s to see how protein, carbohydrates, fat, fiber, and flexible foods can exist in the same plan.

How to Use PCOS Macros for Weight Loss

When weight loss is appropriate and chosen by the individual, it generally requires a sustained calorie deficit.

PCOS may make the process feel slower or more difficult for some people, but the answer isn’t automatically to eliminate carbohydrates or push calories as low as possible.

Use a Moderate Starting Deficit

A moderate deficit is more likely to preserve energy, training performance, and adherence than an extreme one.

The right deficit depends on body size, activity, medical history, dieting history, and individual response.

Judge Trends, Not Individual Weigh-Ins

Body weight can change from water, sodium, carbohydrate intake, digestion, menstrual-cycle changes, training soreness, travel, stress, and sleep.

Compare weekly averages under similar conditions rather than reacting to one number.

Track More Than Weight

Consider:

• Waist and hip measurements.
• How clothing fits.
• Hunger and cravings.
• Energy and sleep.
• Training performance.
• Consistency with meals and tracking.
• Relevant laboratory values reviewed with your clinician.

Recognize Weight-Neutral Improvements

Physical activity, balanced nutrition, improved sleep, and behavioral support can provide health benefits even without weight loss.

A plan shouldn’t treat the scale as the only sign of progress.

Don’t Automatically Eat Back Exercise Calories

Fitness trackers and cardio machines estimate calorie expenditure. They don’t measure it precisely.

Your activity should generally be considered when calculating your starting target. Automatically eating back every displayed calorie may erase part or all of the intended deficit.

Exercise, Sleep, Stress, and Medication

Macros are only one part of PCOS management.

Exercise

A combination of resistance training and aerobic activity can support health, fitness, strength, body composition, and insulin sensitivity.

The best starting plan matches your ability, medical status, pain level, schedule, and current activity. You don’t need to punish yourself with exercise to make food “count.”

Daily Movement

Walking and other forms of daily movement can contribute meaningfully to energy expenditure and health. Increasing movement gradually may be more sustainable than adding large amounts of formal cardio.

Sleep

PCOS is associated with an increased risk of sleep concerns, including obstructive sleep apnea.

Persistent snoring, gasping during sleep, morning headaches, or severe daytime fatigue deserve medical attention.

Stress and Mental Health

PCOS is associated with higher rates of anxiety, depression, body-image distress, and disordered eating.

Emotional health should be assessed and supported rather than treated as a lack of discipline.

Medication

Depending on symptoms and goals, treatment may include hormonal contraception, metformin, fertility medication, anti-androgen treatment, GLP-1 medication, or other therapies.

Medication decisions belong with a qualified prescriber. Macro tracking may help organize nutrition while taking medication, but it shouldn’t be used to change a dose or replace clinical care.

Pregnancy and Fertility

Trying to conceive, fertility treatment, pregnancy, and breastfeeding can change calorie and nutrient needs.

These situations require individualized guidance. A general online calculator shouldn’t be used as the only source of nutrition advice.

Common PCOS Macro Mistakes

1. Believing You Need a Completely Different Metabolism Formula

PCOS can affect metabolic and behavioral factors, but there’s no validated online formula that precisely corrects calories for PCOS in every person.

2. Cutting Carbohydrates Automatically

Lower-carbohydrate intake can work for some people, but it isn’t mandatory. The amount should reflect your health, medication, preferences, activity, and response.

3. Eating Too Little

Severe restriction can increase fatigue, cravings, food preoccupation, loss of lean tissue, and rebound eating.

4. Ignoring Protein and Fiber

Calories influence weight, but meal composition can affect fullness, nutrition, recovery, and consistency.

5. Expecting Macros to Regulate Hormones

Nutrition may support general and metabolic health, but macro targets don’t directly treat hormonal abnormalities or guarantee menstrual regularity.

6. Reacting to Daily Scale Changes

Normal water fluctuation can hide fat loss for days or weeks. Use longer-term trends before changing calories.

7. Tracking Perfectly During the Week and Ignoring Weekends

Partial tracking can make an accurate calorie target appear ineffective. Track the complete pattern without guilt.

8. Mixing Raw and Cooked Food Entries

Rice, pasta, meat, and other foods gain or lose water during cooking. Match the database entry to the condition in which the food was weighed.

9. Treating Every Food as a Blood-Sugar Emergency

Blood-sugar response depends on portion size, the complete meal, activity, medication, and individual physiology.

10. Following Supplement Claims Instead of Medical Advice

Supplements can interact with medications, vary in quality, and provide less benefit than marketing suggests. Discuss supplements with your clinician or pharmacist.

11. Changing Too Many Variables at Once

Lowering food, adding cardio, changing training, reducing carbohydrates, and changing sodium at the same time makes it difficult to know what produced the next result.

12. Continuing to Track When It Becomes Harmful

Step back if tracking increases anxiety, guilt, bingeing, restriction, compensatory exercise, or constant food preoccupation.

A qualified eating-disorder-informed professional can help you choose a safer structure.

When Should You Adjust Your PCOS Macros?

Adjustments should be based on consistent data, not frustration.

Before changing your targets, ask:

• Have I followed the current targets consistently enough to evaluate them?
• Am I tracking oils, sauces, drinks, snacks, and restaurant meals?
• Has my activity changed?
• Am I comparing weekly averages rather than isolated weigh-ins?
• Could digestion, sodium, travel, training, sleep, or menstrual changes affect the scale?
• Is hunger becoming difficult to manage?
• Has my energy or training performance declined?
• Have medications or health conditions changed?

When a change is justified, adjust one variable at a time.

A modest calorie change is easier to evaluate than simultaneously dropping food, adding cardio, changing training, and manipulating carbohydrates.

Speak with your healthcare team when symptoms, menstrual patterns, medication, blood glucose, fertility goals, or laboratory values change.

When a Macro Calculator Isn’t Enough

A free calculator can give you a starting estimate. It can’t diagnose PCOS, interpret bloodwork, coordinate medication, or determine why your symptoms have changed.

You may benefit from professional support when:

• You’re unsure whether your calorie target is appropriate.
• You’re taking diabetes or fertility medication.
• You’re pregnant, breastfeeding, or trying to conceive.
• You have significant digestive symptoms or food restrictions.
• You have a history of disordered eating.
• You repeatedly lower calories without improving results.
• You understand macros but struggle with consistency and adjustments.

For medical nutrition therapy, look for a registered dietitian with experience in PCOS. For diagnosis, symptoms, medication, and fertility care, work with a qualified physician or specialist.

For structured macro coaching, accountability, weekly adjustments, and a clear aftercare plan, review the 16 Week Deadline Diet coaching program.

Why I Teach PCOS Macros This Way

When I created the original IIFYM Macro Calculator, my goal was to help people move away from rigid meal plans and unnecessary food rules.

Over the years, I’ve watched macro tracking help people understand portions, improve protein intake, and create more flexibility. I’ve also watched it become another form of restriction when people believe they must hit every number perfectly or keep lowering calories whenever the scale pauses.

PCOS makes honest, measured guidance even more important because the internet is filled with claims that one food, supplement, ratio, detox, or hormone reset will fix everything.

People with PCOS don’t need more fear. They need accurate information, appropriate medical care, a sustainable nutrition structure, and enough time to understand how their body responds.

Macros can provide that structure. They shouldn’t be presented as a cure.

Get Free Macro Support

The IIFYM Macro Secrets Facebook group includes more than 100,000 members discussing macro tracking, flexible dieting, meal planning, recipes, restaurant meals, plateaus, and accountability.

Community support doesn’t replace medical care, but it can make the daily process of learning macros feel less isolating.

Join the IIFYM Macro Secrets Facebook group.

Frequently Asked Questions About PCOS Macros

What Macro Ratio Is Best for PCOS?

There’s no single best ratio. Your calories, protein, carbohydrates, fats, and fiber should be based on your body size, activity, goal, health, medication, food preferences, and individual response.

Does PCOS Require a Low-Carbohydrate Diet?

No. Some people prefer or benefit from a lower-carbohydrate approach, but it isn’t required for everyone. Sustainable healthy eating is more important than forcing one universal ratio.

Can Macro Tracking Cure PCOS?

No. Macro tracking is a food-planning and self-monitoring tool. It doesn’t cure PCOS or replace medical treatment.

Can Macros Regulate My Period?

Nutrition and weight changes may influence menstrual patterns in some people, but macro tracking can’t guarantee regular periods. Irregular, absent, painful, or unusually heavy periods should be discussed with a healthcare professional.

Can I Lose Weight With PCOS?

Yes. Many people with PCOS can lose weight, although the process may be more difficult for some. A reasonable calorie deficit, adequate protein, physical activity, sleep, behavioral support, and appropriate medical care may help.

Why Am I Not Losing Weight Even Though I’m Tracking?

Possible reasons include normal water fluctuation, incomplete tracking, inaccurate portions, lower activity, an unrealistic timeline, medication changes, or a calorie estimate that needs adjustment.

Review several weeks of consistent data before making a change.

How Much Protein Should I Eat With PCOS?

Many active adults use approximately 1.4 to 2.0 grams per kilogram of body weight per day as a starting range, but individual needs vary.

Should I Avoid Sugar With PCOS?

You don’t necessarily need to eliminate sugar. Total intake, portion size, overall meal composition, health status, and medication all matter.

Should I Avoid Gluten or Dairy With PCOS?

PCOS alone doesn’t require eliminating gluten or dairy. Avoid them when you have an allergy, diagnosed condition, intolerance, ethical preference, or another clear reason.

Is Keto Best for PCOS?

Keto may be an option for some people, but current evidence doesn’t establish it as the best universal diet for PCOS.

Can I Track Macros While Taking Metformin or a GLP-1 Medication?

Macro tracking may help organize calories and protein, but medication use should be supervised by the prescribing clinician. Appetite suppression, gastrointestinal symptoms, and blood-glucose changes may require individualized nutrition support.

Is the IIFYM Calculator a PCOS Medical Calculator?

No. The IIFYM Macro Calculator estimates calories and macros from the information you enter. It doesn’t diagnose PCOS, measure insulin resistance, interpret laboratory results, or provide medical nutrition therapy.

How Long Should I Follow My Macros Before Adjusting Them?

Follow them long enough to collect reliable data. For many people, several weeks of consistent tracking and weekly averages are more useful than reacting to a few days of scale movement.

Can I Use PCOS Macros if I Don’t Want to Lose Weight?

Yes. Macro tracking can be used to support maintenance, meal consistency, adequate protein, training, or general nutrition without pursuing weight loss.

What If Macro Tracking Makes Me Anxious?

Reduce or stop tracking and speak with an eating-disorder-informed professional. Nutrition tracking should support your health rather than increase fear, guilt, or compulsive behavior.

Your Next Step

Calculate a Starting Estimate

Use the free IIFYM Macro Calculator.

Get Free Community Support

Join the IIFYM Macro Secrets Facebook group.

Get Structured Coaching

Learn about the 16 Week Deadline Diet coaching program.

Start with a reasonable estimate. Build meals around protein, fiber, and foods you enjoy. Track honestly. Review trends instead of daily noise. Make changes slowly and involve your healthcare team when medical decisions are involved.

PCOS may change some of the challenges you face. It doesn’t remove your ability to build a plan that’s informed, flexible, and sustainable.

Sources and References

1. Monash University: International Evidence-Based PCOS and PMOS Guideline Resources.
2. Monash University: Polyendocrine Metabolic Ovarian Syndrome Name Change.
3. Recommendations From the 2023 International Evidence-Based Guideline for PCOS.
4. Open-Access Version of the 2023 International PCOS Guideline Recommendations.
5. American College of Obstetricians and Gynecologists: Polycystic Ovary Syndrome.
6. ACOG: Five Things You Need to Know About PCOS.
7. NIDDK: Links Between PCOS and Diabetes.
8. International Society of Sports Nutrition Position Stand: Protein and Exercise.
9. National Eating Disorders Association: Warning Signs and Symptoms.