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Polycystic Ovary Syndrome, commonly known as PCOS, has recently been renamed PMOS: Polyendocrine Metabolic Ovarian Syndrome. This name change is important because the older name made many people think the condition was mainly about “cysts on the ovaries.” In reality, many people with PCOS/PMOS do not have true ovarian cysts, and the condition often affects far more than the ovaries.
The Endocrine Society announced in May 2026 that PMOS is the new name for the condition previously known as PCOS. The organization notes that PMOS affects about 1 in 8 women, or more than 170 million women worldwide, and that the new name better reflects the hormonal, metabolic, skin, reproductive, weight, and mental-health features of the condition.
Because many patients and healthcare providers still recognize the older name, we will use PCOS/PMOS throughout this article.
This blog expands on our June 30 PMOS lecture notes and adds updated research-based references.
The old name, Polycystic Ovary Syndrome, focuses on ovarian appearance. But PCOS/PMOS is not simply a gynecological issue. It is a whole-body endocrine and metabolic condition.
The new name, Polyendocrine Metabolic Ovarian Syndrome, better reflects the three major systems involved:
Polyendocrine: multiple hormone systems may be involved, including the ovaries, adrenal glands, pancreas, thyroid axis, pituitary signaling, and stress-response system.
Metabolic: insulin resistance, blood sugar imbalance, lipid changes, weight gain or difficulty losing weight, fatty liver risk, and cardiovascular risk may be involved.
Ovarian: ovulation, menstrual cycles, follicles, fertility, progesterone production, and ovarian hormone signaling may be affected.
This matters clinically because many patients are told they “only have irregular periods” or “only have acne,” when the deeper issue may involve insulin, inflammation, androgen excess, ovulation, and long-term metabolic health.
Symptoms can vary widely. Some people have obvious cycle changes, while others mainly notice skin, hair, mood, weight, or fertility concerns.
Common reproductive and cycle-related signs include:
Common androgen-related signs include:
Common metabolic signs include:
Common mood and nervous-system concerns include:
The World Health Organization describes PCOS as a common hormonal disorder associated with high androgen levels, irregular periods, abnormal ovulation, infertility, acne, excess facial or body hair, and hair thinning. WHO estimates that PCOS affects 10–13% of reproductive-aged women, and that up to 70% of affected women may be undiagnosed.
Diagnosis is usually based on the presence of at least two out of three major features, after other causes have been ruled out:
The 2023 International Evidence-Based PCOS Guideline states that when irregular menstrual cycles and hyperandrogenism are already present, ultrasound or AMH is not required for diagnosis. It also states that AMH should not be used as a single diagnostic test and should not be used for diagnosis in adolescents.
For adolescents, diagnosis is more cautious. The guideline notes that adolescents should have both hyperandrogenism and ovulatory dysfunction, and that ultrasound and AMH are not recommended because they can be nonspecific during puberty.
One of the most important patterns in PCOS/PMOS is the relationship between insulin resistance and androgen excess.
A simplified cycle may look like this:
Insulin resistance → higher insulin → increased ovarian androgen production → disrupted follicle development → poor ovulation → low progesterone → estrogen dominance pattern → worsened metabolic stress
Research has shown that insulin can stimulate ovarian androgen production, especially together with luteinizing hormone, or LH. This helps explain why PCOS/PMOS is not only a reproductive condition but also a metabolic condition.
When ovulation does not happen regularly, the body may not produce enough progesterone during the luteal phase. This can contribute to irregular bleeding, PMS, heavy cycles in some patients, and a relative “estrogen dominance” pattern.
PCOS/PMOS is associated with increased risk of insulin resistance, type 2 diabetes, high cholesterol, high blood pressure, cardiovascular disease, sleep apnea, fatty liver disease, and endometrial hyperplasia or endometrial cancer. WHO also notes that PCOS can significantly affect quality of life and is associated with anxiety, depression, eating disorders, and negative body image.
This is why a complete PCOS/PMOS plan should not focus only on birth control, fertility medication, or ovarian ultrasound findings. A better approach looks at the full picture:
A comprehensive evaluation may include:
Hormone and cycle markers
Metabolic markers
In functional medicine, fasting insulin is often checked because glucose and HbA1c may look “normal” even when insulin is already elevated. TG/HDL ratio may also provide useful information about cardiometabolic risk.
There is no single perfect PCOS/PMOS diet for everyone. The goal is to reduce insulin burden, improve blood sugar stability, support ovulation, reduce inflammation, and build a sustainable way of eating.
For patients with strong insulin resistance, sugar cravings, weight gain, acne, or irregular cycles, a temporary lower-glycemic or lower-starch plan may be helpful.
Foods often emphasized include:
Foods often reduced during a reset phase include:
After blood sugar and insulin improve, many patients do well with a sustainable low-glycemic Mediterranean-style pattern. Research suggests that Mediterranean-style eating may be associated with better insulin resistance and hyperandrogenism patterns in PCOS, likely due to its anti-inflammatory profile and emphasis on whole foods, polyphenols, fiber, and omega-3 fats.
A long-term plate may include:
The goal is not extreme restriction. The goal is metabolic stability.
Exercise is one of the most powerful tools for PCOS/PMOS because it helps muscles use glucose more effectively and improves insulin sensitivity.
A PCOS exercise review recommends 150–300 minutes per week of moderate-intensity activity or 75–150 minutes per week of vigorous activity, plus muscle-strengthening activities on two non-consecutive days per week.
A realistic plan may include:
For many patients, strength training is especially important because muscle tissue improves glucose disposal and metabolic flexibility.
Supplements should be individualized. They are not a replacement for medical care, nutrition, sleep, stress management, or appropriate medications when needed. They may be helpful when chosen based on symptoms, labs, cycle pattern, fertility goals, and medication safety.
Myo-inositol and D-chiro-inositol are commonly used in PCOS/PMOS for insulin signaling, ovarian function, cycle regularity, and fertility support. A 2024 systematic review found that inositol may have insulin-sensitizing effects, but the evidence remains variable, so it should be used thoughtfully rather than presented as a guaranteed treatment.
Berberine is often used for insulin resistance, glucose metabolism, and lipid support. A systematic review comparing berberine and metformin found no significant difference between berberine and metformin for several insulin-resistance and glycolipid outcomes, though study quality and patient selection matter. Berberine should be used cautiously, especially with glucose-lowering medication, pregnancy, breastfeeding, or multiple prescriptions.
Gymnema sylvestre is traditionally used for sugar cravings and glucose support. In clinical practice, it is sometimes called “sugar destroyer” because it can temporarily reduce sweet taste perception. It may be considered when sugar cravings are a major pattern, but it should be used carefully in anyone taking blood-sugar-lowering medication.
Magnesium supports muscle relaxation, nervous-system regulation, glucose metabolism, and stress response. Evidence in PCOS is mixed. Some reviews suggest magnesium may improve insulin resistance, lipid profiles, and glucose markers, while other analyses show less consistent benefit. Magnesium is often most appropriate when intake is low, stress is high, sleep is poor, or muscle tension is present.
Omega-3 fatty acids may support inflammation, triglycerides, cardiovascular health, and hormonal balance. A 2024 review noted that several clinical trials showed omega-3 fats can improve components of metabolic syndrome in women with PCOS.
Licorice and white peony are classic herbs used in traditional and functional approaches to PCOS/PMOS, especially when androgen excess, adrenal stress, cycle irregularity, or low progesterone patterns are present. This combination should be individualized because licorice can affect blood pressure, potassium, fluid retention, and medication safety.
Vitex is commonly used for luteal-phase support, cycle regulation, PMS patterns, and ovulation support. It may be considered when the main pattern is irregular ovulation, PMS, spotting, or low luteal progesterone. It should be used carefully in patients using hormonal medications, fertility medications, dopamine-related medications, or during pregnancy unless supervised.
Saw palmetto is often discussed for androgen-related symptoms such as acne, hirsutism, or androgenic hair thinning because of its possible effect on 5-alpha-reductase and DHT activity. Evidence is stronger for androgenic hair-loss discussions than for PCOS-specific outcomes, so it should be presented as a possible supportive option rather than a primary treatment.
Tribulus is used in some herbal traditions for ovulation and fertility support. It should be individualized, especially for patients trying to conceive or using fertility medications.
Estrogen metabolism matters in PCOS/PMOS, especially when cycles are irregular, progesterone is low, or bleeding is heavy. When ovulation is poor, progesterone may be insufficient to balance estrogen’s effect on the uterine lining.
Supporting estrogen clearance does not mean “detoxing” aggressively. It means supporting normal physiology:
Helpful foods include:
Fiber is especially important because metabolized estrogen is eliminated through the bile and stool. Constipation can increase reabsorption of estrogen metabolites.
In some functional medicine traditions, pancreatic or digestive enzymes are used away from food to support inflammation and tissue remodeling. The lecture discussed using enzymes at least one hour before food or at least two hours after food for cyst-like or fibroid patterns.
However, this is not part of standard PCOS/PMOS diagnostic or treatment guidelines. Ovarian cysts, pelvic pain, fibroids, heavy bleeding, or suspected cyst rupture should be medically evaluated and monitored with appropriate imaging when needed.
Seek urgent medical care for:
A practical care plan often works best in this order:
This approach is not about treating only the ovaries. It is about supporting the entire endocrine-metabolic system.
Consider evaluation for PCOS/PMOS if you have:
PCOS/PMOS is manageable, but it requires a broader view than “just cysts” or “just irregular periods.”
PCOS is now being reframed as PMOS: Polyendocrine Metabolic Ovarian Syndrome. This new name better reflects what many patients experience: a condition involving hormones, insulin, metabolism, skin, hair, mood, inflammation, cycles, and fertility.
A complete PCOS/PMOS plan should be personalized. The best results usually come from combining nutrition, movement, stress regulation, sleep support, targeted labs, and individualized herbal or nutritional support when appropriate.
At Iris Wellness Center, we look at PCOS/PMOS as a whole-body pattern. Our goal is to help patients understand the root contributors behind their symptoms and create a realistic plan to support hormone balance, metabolic health, cycle regularity, and long-term wellness.
Educational disclaimer: This article is for educational purposes only and is not a substitute for medical diagnosis or treatment. Please consult a qualified healthcare provider for individualized care, especially if you have severe pelvic pain, heavy bleeding, infertility, pregnancy, diabetes, thyroid disease, high blood pressure, or are taking medications.
