Why PCOS Was Just Renamed After Decades

Good morning!

Today, we are diving deep into a topic that touches the lives of millions of women, yet is still deeply misunderstood: metabolic and hormone balance. If you or a loved one have ever navigated the frustrating world of irregular cycles, sudden weight changes, or hormonal adult acne, this week’s conversation is intimately for you.

We are uncovering the truth behind a condition that has long been kept in the shadows, exploring why science is finally changing how we talk about it, and looking at the holistic ways you can reclaim your body's natural rhythm. Let’s get into it.

Key Takeaways

• A Growing Epidemic: Global cases among young women have surged by nearly 60% over the last three decades.

• The Hidden Struggle: An estimated 70% of women living with this condition are completely undiagnosed.

• A Historic Rebrand: Medical journals just officially changed the name from PCOS to PMOS to reflect that it is a metabolic disorder, not just an ovarian issue.

CORE

What is PCOS?

PCOS is an endocrine disorder that affects a staggering 10-13% of women worldwide. Typically detected during childbearing years, it is characterized by subtle yet impactful hormone imbalances. Specifically, it involves higher-than-normal levels of androgens (hormones like testosterone) secreted by both the ovaries and the adrenal glands that sit atop the kidneys. On paper, it might seem like a minor shift in chemistry, but it creates a massive ripple effect in the body that can lead to serious long-term health complications if left unsupported.

According to Johns Hopkins, typical symptoms include irregular periods, weight gain, hair loss, excessive facial or body hair, and a higher risk for diabetes, gestational diabetes, and cardiovascular disease, though these metabolic challenges often manifest later in life.

Because symptoms vary so much from woman to woman, a formal diagnosis requires meeting at least two of the following three criteria:

1. Signs of high androgens: This includes physical signs like unwanted body hair and thinning head hair, or elevated testosterone levels in blood work.

2. Irregular menstrual cycles.

3. Polycystic ovaries on an ultrasound: Note: You do not actually need to have cysts on your ovaries to be diagnosed. We’ll talk about why that matters in a moment!

What Causes PCOS?

As frustrating as it is, medical science hasn’t pinpointed a definitive, single cause. Instead, researchers find themselves in a classic "chicken or the egg" scenario with three primary factors:

• Insulin Resistance: This occurs when your cells stop responding efficiently to insulin. As a result, glucose circles through your bloodstream for too long, creating cellular damage and inflammation. Roughly 65–70% of women with this condition experience insulin resistance, exponentially increasing their risk for diabetes later in life. It also creates a vicious feedback loop: high insulin triggers the ovaries to produce more testosterone, which coaxes the body into storing fat around the abdomen, which then worsens insulin resistance. Breaking this loop is a vital focal point of healing.

• Genetics: Because it frequently runs in families, our genetic heritage certainly plays a role. However, we don't just inherit DNA, we also inherit lifestyle habits from our families, both supportive and unsupportive, which can pass these health expressions down through generations.

• High Androgen Levels: As mentioned, elevated circulating androgens are the hallmark characteristic of this condition, driving the majority of physical symptoms.

Whether one of these is the true root cause or simply a symptom that follows suit remains to be seen. The moment a scientific breakthrough occurs, you can count on me to bring you up to speed!

The Trend

One of the most alarming aspects of this condition is its sharp rise over the past three decades. A massive global study tracking women aged 10–24 across 204 countries from 1990 to 2021 revealed that incidence (new cases) jumped by 56%, and prevalence (total cases) surged by 59%. With an estimated 110 to 170 million women currently navigating this condition, researchers are scrambling for answers.

Difficult to Identify

The true Achilles' heel of this health crisis is that the World Health Organization (WHO) estimates 70% of women who have it are completely unaware. Because the symptoms can feel generalized and androgen testing isn't routinely included in standard well-woman exams, it easily slips under the radar, often only being discovered when a woman faces challenges trying to conceive.

PCOS to PMOS: A Historic Shift

Change is finally here. Over the weekend, The Lancet officially published a landmark update renaming PCOS to Polyendocrine Metabolic Ovarian Syndrome (PMOS). This historic shift was voted into action by 14,360 patients, healthcare professionals, and researchers.

Honestly? This change is long overdue. Medicine has a quirky habit of sticking to misleading names for decades, just look at Vitamin D, which is actually a secosteroid hormone, not a vitamin! As we noted earlier, you don't actually need to have ovarian cysts to have this condition, nor are cysts the core problem. This rebrand is a massive win that helps destigmatize the condition and accurately frames it as a systemic metabolic harmony issue.

How Can You Support Yourself or Others with PMOS?

Because there is no permanent pharmaceutical cure, standard care focuses on managing symptoms and restoring systemic balance. These approaches generally fall into three categories:

• Lifestyle Foundations: Many long-term health risks correlate with body weight, making regular movement and a whole-food diet essential. Exercise naturally boosts your insulin sensitivity, while a mindful, fiber-rich diet prevents radical glucose spikes. These are beautiful practices for all of us, but they are absolutely non-negotiable for managing PMOS.

  
  

• Targeted Medication: To break the insulin feedback loop, physicians often prescribe medications like metformin to improve insulin sensitivity. Birth control pills are also frequently used to override the ovaries' hormone production by signaling the brain that enough hormones are already circulating, which halts excess androgen production. Additionally, androgen blockers can be used to blunt the physical impact of testosterone. However, these conventional prescriptions come with their own side effects, which every woman should evaluate carefully.

  
  

• Holistic Supplementation: While a nutrient-dense diet is your absolute foundation, targeted micronutrients can radically ease the daily management of PMOS. Here are three powerhouses that stand out:

  • Inositol: A naturally occurring compound found in fruits like cantaloupe, inositol acts as a cellular messenger that helps pick up the slack caused by insulin resistance. Pro-Tip: Look for the golden 40:1 ratio (4,000mg of Myo-Inositol to 100mg of D-Chiro-Inositol) to perfectly mimic the body’s natural chemistry.

  • Zinc: This mineral is incredible for addressing cosmetic frustrations like hormonal acne, hair loss, and unwanted facial hair. It works by blunting excess androgen activity, supporting insulin sensitivity, and calming systemic inflammation. Note: Zinc can deplete your body's copper stores over time, so ensure your supplement includes a touch of copper for balance.

  • Magnesium: Women navigating metabolic and endocrine shifts are frequently deficient in magnesium, which is a critical co-factor in glucose metabolism. Magnesium also activates the brain's GABA receptors to improve deep, restorative sleep while gently lowering fasting insulin levels.

ENDNOTE

Final Thoughts 

Navigating PMOS requires looking beyond the surface symptoms and addressing the deeper endocrine and metabolic roots. By pairing foundational lifestyle habits with targeted, high-quality cellular support, you can break the feedback loops and guide your body back to its natural, vibrant state of flow.

Until next week!

Adrian Macdonald | Team Dietitian | The 8% Newsletter Author