PCOS reaches well beyond your ovaries.
For many women with PCOS, insulin sits at the center of the picture.
When cells respond less readily to insulin the pancreas makes more of it, and higher insulin can raise ovarian androgen production and disturb ovulation.
That happens across a range of body sizes, including in women who have never been overweight.
In May 2026 the condition was formally renamed polyendocrine metabolic ovarian syndrome, PMOS, for exactly this reason.
Insulin signaling is the thread, and Food & Nourishment is the signal that reaches it most directly. Sleep and stress sit close behind it here.
The name changed because the old one pointed at the wrong organ.
Not every woman with the condition has polycystic-appearing ovaries, and what is seen on an ultrasound is often follicles rather than cysts in the usual sense.
The old name put nearly all the attention on the ovaries and made the whole thing sound reproductive, as though it only mattered when a woman wanted to become pregnant.
Polyendocrine recognizes that more than one hormone-producing system is involved. Metabolic acknowledges the relationship with insulin signaling, blood sugar and body composition.
Ovarian keeps the connection to ovulation, androgens and cycles. The condition affects roughly one in eight women worldwide.
Hormones are messengers, and they are reporting on something.
Raised androgens, disrupted ovulation and changing estrogen and progesterone patterns are all real, and they tell part of the story.
Hormones do not work independently of the conditions around them.
Insulin sensitivity, blood sugar regulation, sleep and body clock, chronic stress, inflammation, muscle mass, what is actually being eaten and genetics all sit in that environment.
No single root cause explains every woman's experience, and the exact cause of the condition is still not known.
This happens in women who have never been overweight.
Reduced insulin sensitivity leads to greater insulin output. Higher insulin can contribute to more androgen production. Raised androgens can affect ovulation, skin, hair growth and where fat is stored.
That loop can run in a woman of any size, which is why being told to lose weight is such a common and such an incomplete answer to receive.
Where I start with a woman who has this diagnosis.
The same five signals, in the same order, with more attention on what is happening to insulin across a day.
Protein and food that does not spike the curve, real load on the muscles, a night that repairs, and light at the right end of the day.
That is the ground underneath the care of whoever is managing your condition, and it is the part that stays yours. None of it is a treatment or a replacement for that care.
The renaming was verified against the consensus paper itself rather than taken from coverage of it.
Teede HJ, et al. Polyendocrine metabolic ovarian syndrome, the new name for polycystic ovary syndrome: a multistep global consensus process. The Lancet, May 2026. Read the paper.
Some of this belongs with your doctor, and I will say so.
PMOS is a medical diagnosis and it belongs with your physician or your endocrinologist. I do not diagnose it, I do not treat it, and nothing here is medical advice.
What I do is the nutrition, the training and the daily rhythm alongside the care you are already getting.
Everything above is drawn from what I have already written. These are the pieces it came out of, at full length.
- Is PCOS still called PCOS?
- It was renamed polyendocrine metabolic ovarian syndrome, PMOS, in May 2026, through a global consensus published in The Lancet. Most people will say PCOS for years yet. Same condition.
- Why does PCOS make weight so hard to lose?
- For many women higher circulating insulin is part of it, and insulin promotes fat storage and works against fat breakdown. That is why an approach aimed at insulin does more here than a calorie cut.
- Can you have PCOS without being overweight?
- Yes. Reduced insulin sensitivity and the androgen pattern that follows it can occur across a range of body sizes, including in women who do not appear overweight at all.
Find out whether this is the one costing you the most.
Twenty questions, about ten minutes, and it comes back with the one signal most likely holding the other four up, plus one thing to do about it this week. Free, and no card.