Meet PMOS: The Biggest Update in Women's Health This Year

If you've been anywhere on the internet lately, you've probably seen the news: PCOS has officially been renamed! As of May 2026, the condition formerly known as Polycystic Ovary Syndrome is now called Polyendocrine Metabolic Ovarian Syndrome, or PMOS. The change was published in The Lancet after a 14-year global consensus process led by researchers at Monash University. A decision was backed by 56 professional and patient organizations, and informed by over 14,000 survey responses from patients and clinicians worldwide. 

This is a big deal. And whether you've been diagnosed with PCOS/PMOS or just suspect something is off with your hormones and/or cycle, this newsletter is for you.

So, what is PMOS?

PMOS is a complex hormonal and metabolic condition that affects an estimated 1 in 8 people of reproductive age worldwide (roughly 170 million). And up to 70% of those affected remain undiagnosed.

The old name—Polycystic Ovary Syndrome—suggested the condition was primarily about ovarian cysts. But research has shown there's no meaningful increase in abnormal ovarian cysts in most people with the condition. The name was misleading, and it contributed to decades of missed diagnoses, inadequate treatment, and a narrow focus on fertility when the condition actually affects multiple systems in the body.

The new name reflects what's really going on: polyendocrine (multiple hormonal systems are involved), metabolic (insulin resistance and metabolic dysfunction are central features), and ovarian (the ovaries still play a role, but they're not the whole story). It's a whole-body condition that impacts hormones, metabolism, cardiovascular health, mental health, skin, and the reproductive system.

What are the signs of PMOS?

PMOS can look different from woman to woman, which is part of why it's so often missed or dismissed. Some of the most common signs include:

• Irregular, absent, or very long cycles
• Excess hair growth on your face, chest, or back (hirsutism)
• Acne that tends to be hormonal and persistent (especially along your jawline and chin)
• Thinning hair on your head
• Unexplained weight gain or difficulty losing weight, particularly around your midsection
• Intense sugar cravings or energy crashes after meals (a sign of insulin resistance)
• Fatigue that doesn't match your sleep
• Mood changes, anxiety, or depression
• Skin tags or darkened patches of skin (acanthosis nigricans)
• Difficulty conceiving.

And you don't need to have all of these to be affected. In fact, some women have very mild symptoms that are easy to brush off, which is exactly why awareness matters so much.

The biggest factors to consider

If you've been diagnosed (or suspect PMOS), here are the areas worth paying the most attention to:

1. Insulin resistance. This is one of the most significant and under-discussed drivers of PMOS. Insulin resistance is present in a large percentage of those with the condition, including those at a healthy weight. When insulin is chronically elevated, it stimulates the ovaries to produce more androgens (like testosterone), which drives many of the visible symptoms like acne, hair growth, and irregular cycles. It also makes weight management harder and increases the risk of type 2 diabetes and cardiovascular disease over time.

2. Androgen levels. Elevated androgens are a hallmark of PMOS and are responsible for symptoms like hirsutism, acne, and hair thinning. But androgens don't spike in isolation. They're often driven by insulin resistance, chronic inflammation, or stress, which is why addressing root causes matters more than chasing individual symptoms.

3. Inflammation. Chronic low-grade inflammation is common in PMOS and can worsen insulin resistance, disrupt ovulation, and contribute to mood changes. To no surprise, ultra-processed foods, excess sugar, poor sleep, and chronic stress all feed into this cycle.

4. Gut health. Emerging research continues to connect the gut microbiome to hormone regulation and metabolic health. An imbalanced gut can impair estrogen metabolism, worsen inflammation, and make it harder for your body to manage blood sugar effectively.

How to tackle it

PMOS isn't something you can "cure," but it is something you can manage incredibly well with the right foundations! And more often than not, those foundations come down to how you eat, move, sleep, and manage stress on a daily basis.

Prioritize blood sugar balance. This is the single most impactful shift for most people with PMOS. Eat balanced meals with 25-40 grams of protein, 1-2 sources of healthy fats, and fiber-rich carbs at every meal. Don't skip meals (especially breakfast), aiming to eat every 3-4 hours during the day. When possible, minimize refined sugar and processed carbs as these tend to spike blood sugar. Furthermore, try to pair carbs with protein or fat to slow glucose absorption! Stable blood sugar means lower insulin, which means fewer androgen spikes.

Eat enough. Under-eating and restriction can worsen hormonal dysfunction and make symptoms harder to manage. Your body needs adequate fuel to ovulate, produce hormones, and regulate metabolism. For many women, this isn't the time for a calorie deficit. Rather, it’s the time to get intentional about eating enough protein (ideally 1 gram of protein per pound of your ideal body weight) and fiber (around 30 grams of fiber/day).

Focus on anti-inflammatory foods. Omega-3 fatty acids, (fatty fish, walnuts, flaxseeds), colorful fruits and vegetables, leafy greens, turmeric, and ginger all help lower the inflammatory baseline. Fiber is also essential for estrogen metabolism and gut health—as we covered a few weeks ago, most people aren't getting nearly enough.

Move your body (but be strategic). Strength training is one of the most effective forms of exercise for PMOS because it improves insulin sensitivity and supports muscle mass, both of which directly impact metabolic health. Walking is also incredibly powerful for blood sugar regulation. If you can, go for a 10-15 minute walk after meals. Not possible? Do a minute or two of body weight squats! Overdoing high-intensity exercise, on the other hand, can elevate cortisol and potentially worsen symptoms.

Support your minerals. Zinc supports ovulation and androgen metabolism. Magnesium supports insulin sensitivity, sleep, and stress resilience. Both tend to be low in people with PMOS. If you're seed cycling with us, you're getting zinc in both phases—pumpkin seeds during the follicular phase and sesame seeds during the luteal phase. And our beeyavibe magnesium powder is an easy way to keep magnesium levels consistent!

Manage stress. Cortisol and insulin are closely connected. Chronic stress keeps cortisol elevated, which worsens insulin resistance and disrupts the hormonal cascade needed for ovulation. Even small daily practices (deep breathing, walking, phone-free time, consistent sleep) can support meaningful change over time.

Where seed cycling fits in

Seed cycling won't "fix" PMOS on its own, but it's a simple daily habit that supports several of the key areas we just covered.

During the follicular phase, flax and pumpkin seeds provide lignans and zinc that support healthy estrogen metabolism and ovulation. During the luteal phase, sesame and sunflower seeds deliver zinc, selenium, and vitamin E that support progesterone production and help keep hormones in better balance.

For people managing PMOS, supporting ovulation and hormone balance through consistent nutrition is one of the most effective long-term strategies; and seed cycling makes that easier to stick with!

Don’t have a 28-32 day cycle?

That's very common with PCOS. Rather than following your cycle phases, consider following the moon cycle instead. Start flax and pumpkin seeds on the new moon and continue for two weeks, then switch to sesame and sunflower seeds on the full moon for the following two weeks. This provides a simple framework to stay consistent, even when your cycle is irregular or ovulation isn't occurring regularly.

Why the name change matters

PMOS isn't just a rebrand. It's a signal that the medical community is finally acknowledging what so many have experienced: this condition is bigger than ovarian cysts, bigger than irregular periods, and bigger than fertility alone. If you've ever felt dismissed or underdiagnosed (...or confused by the old framing), this is validation that you weren't imagining it. In our opinion, the condition was poorly named.

And the more we understand about what PMOS actually involves, the better equipped we are to support it—through the right nutrition and the right habits.