Metabolic PMOS
Insulin-Driven Type · Nutrition Support Guide
Does This Sound Like You?
- Your periods are irregular or missing (cycles longer than 35 days, or fewer than 8 periods a year).
- You have a hard time losing weight, especially around your belly.
- You crave carbs and feel an energy crash after meals.
- You have acne on your jawline or chin, oily skin, extra facial or body hair, or thinning hair on top of your head.
- Your labs show high fasting insulin, high testosterone or low SHBG (a protein that holds testosterone in check).
- An ultrasound showed many small follicles on your ovaries.
- Type 2 diabetes or metabolic syndrome runs in your family.
- Your symptoms get worse when you gain weight and better when you lose it.
What's Driving It
Insulin is the hormone that moves sugar from your blood into your cells. With insulin resistance, your cells stop responding well, so your body makes more and more insulin to keep up. All that extra insulin tells your ovaries to make too many androgens (hormones like testosterone). High androgens block ovulation.
Acne, irregular cycles and extra hair growth all trace back to this one problem. That makes insulin the main target. When your cells respond to insulin better, the rest of your symptoms start to improve too.
Tier 1: Core Nutrients
Start HereMyo-Inositol + D-Chiro-Inositol (40:1)
Helps carry insulin's message inside the cells that support your eggs. This brings back insulin sensitivity in your ovaries and helps you ovulate. The 40:1 ratio matches what is found in healthy ovaries, and the ratio matters. Taking more D-chiro than this can backfire and raise androgens.
RDANone setTreatment dose4,000 mg myo + 100 mg D-chiro daily, split
Why Food Isn't Enough
Your ovaries can run low on inositol even when you eat plenty of it. Food gives you only a small fraction of the treatment dose, so a supplement is needed.
Best Food Sources
GrapefruitCantaloupeOrangesBrown riceBeans & lentilsWheat branAlmonds
Magnesium (Glycinate or Malate)
Your body uses magnesium in more than 300 chemical reactions, including the steps that let your cells respond to insulin. It lowers fasting insulin and cortisol and helps you sleep more deeply. The glycinate form is the gentlest on your stomach.
RDA310–320 mg/dayTreatment dose350–400 mg/day, in the evening
Why the Standard Amount Isn't Enough
Insulin resistance makes it harder for your cells to hold on to magnesium, so the stronger the insulin resistance, the faster you lose it. Stress and a high-sugar diet drain it further. A standard blood test doesn't show what's inside your cells. About half of American women don't get even the standard amount from food.
Best Food Sources
Pumpkin seedsDark chocolate (70%+)AlmondsSpinachAvocadoBlack beansCashews
N-Acetyl Cysteine (NAC)
Helps your body make glutathione, its main built-in antioxidant. NAC lowers cell damage and insulin resistance, helps you ovulate and makes cycles more regular. In studies comparing it with metformin, NAC improved insulin about as well, with fewer side effects.
RDANone setTreatment dose600–1,800 mg/day
Food Sources (contain cysteine, NAC's building block)
PoultryEggsDairyLentilsOatsSunflower seeds
CoQ10 (Ubiquinol)
Helps your mitochondria, the energy makers in your cells, turn food into energy. Your eggs need a huge amount of energy to mature, more than almost any other cell in your body. Choose the ubiquinol form. Your body absorbs it much better than ubiquinone.
RDANone setTreatment dose200–600 mg/day, with a meal that has fat
If You Take Metformin
Metformin works partly by slowing one step of energy production in your mitochondria. CoQ10 supports that same energy system. If you feel more tired or have a harder time exercising after starting metformin, ask your provider about adding CoQ10.
Food Sources (less than a treatment dose)
Heart & liverSardinesMackerelBeefPeanutsSpinach
Methylcobalamin (B12)
B12 supports your nerves, helps make red blood cells and powers methylation, a key chemical process in your body. Metformin makes it harder for your gut to absorb B12, so levels often drop over time. Methylcobalamin is the ready-to-use form. Cyanocobalamin, the common form, has to be converted first.
RDA2.4 mcg/dayTreatment dose500–1,000 mcg/day (more if on metformin)
If You Take Metformin: Test Yearly
Low B12 can build quietly after 6–12 months on metformin. Tiredness, tingling in your hands or feet and brain fog often show up before standard labs catch it. Ask for a B12 level and a methylmalonic acid (MMA) test every year. MMA picks up low B12 sooner.
Best Food Sources
ClamsLiverSardinesTroutBeefSalmonDairy
Vitamin D3 (with K2 MK-7)
Supports healthy follicle growth in your ovaries and helps your cells respond to insulin. Lower vitamin D is linked with worse PMOS symptoms and higher androgens, and most people with PMOS test low. K2 sends calcium to your bones and keeps it out of your arteries, so always take it with D3.
RDA600 IU/dayTreatment dose2,000–5,000 IU/day; goal blood level 50–80 ng/mL
Why the Standard Amount Isn't Enough
The standard amount was set to protect bones. Hormones and metabolism need higher levels. Body fat stores vitamin D and keeps it out of your blood, so people with more body fat often need more. Time indoors and sunscreen also limit how much your skin makes. Get your 25-OH-D level tested before you start.
Best Food Sources
Wild salmonMackerelSardinesEgg yolksBeef liverFortified milk
Zinc
Blocks the enzyme that turns testosterone into DHT, a stronger androgen. This helps with acne and extra hair growth. Zinc also supports your ovaries and immune system. Take it with food, and add 1–2 mg of copper when taking treatment doses.
RDA8 mg/dayTreatment dose25–40 mg/day (add 1–2 mg copper if taking long-term)
Why the Standard Amount Isn't Enough
Phytates, natural compounds in grains, beans and seeds, can block up to 45% of the zinc you eat. Cell stress, monthly periods and gut imbalance drain it further. Blood zinc tests don't reliably show whether you have enough.
Best Food Sources
Oysters (highest)BeefPumpkin seedsHemp seedsLentilsCashewsChickpeas
Omega-3 (EPA + DHA)
Healthy fats from fish that calm inflammation. They shift your body toward making calming signals instead of inflammatory ones, lower androgens and help your cells respond to insulin. They support mood too. Omega-3s help in every type of PMOS.
Daily need (plant form)1.1 g/dayTreatment dose2,000–4,000 mg EPA+DHA/day
Why Plant Omega-3s Fall Short
The 1.1 g daily need is for ALA, the plant form found in flax, chia and walnuts. Your body turns less than 10% of ALA into EPA and less than 5% into DHA. Typical American diets also have far too many omega-6 fats compared with omega-3s. You need EPA and DHA directly from fish or algae oil.
Best Food Sources
Wild salmonMackerelSardinesHerringAnchoviesPasture-raised egg yolksAlgae oil (vegan)
Tier 2: Supporting Nutrients
Add as NeededAlpha-Lipoic Acid
Helps your cells respond to insulin and use sugar for energy. It also recharges vitamins C and E and can lower androgens in insulin-driven PMOS.
Treatment dose300–600 mg/day
Food Sources
LiverSpinachBroccoliBrussels sprouts
Chromium (Picolinate)
Strengthens insulin's signal at the cell and helps your body handle sugar. Chromium picolinate is the form your body absorbs best.
Treatment dose200–1,000 mcg/day
Food Sources
BroccoliBeefTurkeyWhole grainsBrazil nuts
L-Carnitine
Carries fats into your mitochondria so they can be burned for energy. It improves egg quality and ovulation, whether or not you lose weight.
Treatment dose1,000–3,000 mg/day
Food Sources
LambBeefPorkChickenFishDairy
Niacin (NR or NMN)
These forms of vitamin B3 raise NAD+, a molecule your cells need for energy. NAD+ turns on pathways that help build new mitochondria and improve how your cells respond to insulin.
Treatment dose250–500 mg/day NR or NMN
Food Sources
LiverChickenTunaMushroomsPeanutsNutritional yeast
Vitamin B6 (P5P)
Helps your liver clear androgens and estrogen. It also helps your brain make dopamine, which helps control LH, a key ovulation hormone. P5P is the active form, so your body can use it right away.
Treatment dose25–50 mg/day as P5P, in the morning
Food Sources
ChickenTunaSalmonChickpeasBananaPistachios
Biotin (B7)
Helps your body process sugar for energy. Raw egg whites contain a protein that blocks biotin, so cook your eggs.
Treatment dose1,000–5,000 mcg/day
Food Sources
Egg yolk (cooked)LiverSalmonAvocadoSweet potatoAlmonds
Thiamine / Benfotiamine (B1)
Helps your cells fully burn sugar for energy instead of storing it. Benfotiamine is a fat-soluble form that reaches your tissues more easily.
Treatment dose50–100 mg/day benfotiamine
Food Sources
Pork loinEdamameSunflower seedsBlack beansNutritional yeast
Glycine
One of the building blocks of glutathione, along with NAC. If you eat a lot of protein, it helps balance another amino acid called methionine. Glycine also calms your nervous system and improves sleep.
Treatment dose3,000–5,000 mg/day
Food Sources
Bone brothCollagenSkin-on poultryGelatinSpinachCabbage
5-MTHF (Methylfolate)
The ready-to-use form of folate. It helps your body clear estrogen and keeps methylation running. It works well even if you have an MTHFR gene variant, which is common in PMOS.
Treatment dose800–1,000 mcg/day
Food Sources
LiverSpinachAsparagusBrussels sproutsAvocadoBeets
L-Glutamine
Fuels the cells that line your gut and helps keep the lining sealed. A leaky gut lets bits of bacteria into your blood, and that can make insulin resistance worse.
Treatment dose5,000–15,000 mg/day on an empty stomach
Food Sources
BeefChickenEggsRaw cabbageBeetsBone broth
Selenium
Helps make one of your body's key antioxidant enzymes and turns thyroid hormone into its active form. Selenium is often low in PMOS, and it matters more if you have Hashimoto's, which often occurs alongside PMOS. Don't take more than 400 mcg a day.
Treatment dose100–200 mcg/day
Food Sources
Brazil nuts (1–2 = ~100 mcg)TunaSardinesBeefTurkeyCottage cheese
Iron (check ferritin first)
Low iron slows energy production in your cells and makes it harder for your thyroid and brain to do their jobs. A ferritin (stored iron) level under 50 ng/mL usually means you need more iron. Too much iron can cause harm, so get tested before you take it.
Treatment doseSet by your provider based on your ferritin level
Food Sources
LiverRed meatOystersLentilsSpinach (with vitamin C)
When to Take What
- Inositol: split into a morning and evening dose, with food, to keep a steady supply.
- Magnesium: in the evening. It supports deep sleep and helps your cortisol settle overnight.
- B vitamins (B12, B6, niacin, biotin and thiamine): in the morning. They can feel energizing, so skip evening doses if they affect your sleep.
- Biotin before lab work: stop taking it at least 3 days before any blood test. It can make thyroid, hormone and other results look falsely high or low.
- CoQ10: with a meal that has fat, so your body can absorb it.
- Vitamin D + K2: with your biggest meal that has fat.
- Zinc: with food to avoid nausea. Take it at least 2 hours apart from iron, since they compete to get absorbed.
- Iron: with vitamin C to help absorption. Take it apart from calcium and zinc.
- L-Glutamine: on an empty stomach or between meals, so it reaches your gut cells.
- NAC: with or without food. Split the dose if it upsets your stomach.
- Omega-3: with your biggest meal for better absorption and fewer fishy burps.
Lab Tests to Ask Your Provider About
- Fasting insulin and fasting glucose: used together to calculate HOMA-IR, a score for insulin resistance. A score of 2.5 or higher suggests insulin resistance. At 4.0 or higher, your provider may talk with you about medication.
- HbA1c: shows your average blood sugar over the past 3 months. Best is under 5.4%.
- Free and total testosterone: shows how much androgen your body is making.
- SHBG: a protein that holds testosterone in check. Low SHBG means more active testosterone. Insulin resistance lowers SHBG.
- LH and FSH: LH that is high compared with FSH is common in metabolic PMOS.
- 25-OH-D (vitamin D): goal is 50–80 ng/mL. Most people with PMOS test below 40.
- RBC magnesium: measures magnesium inside your cells, which is more accurate than a standard blood test.
- Ferritin (stored iron): goal is above 70 ng/mL. Most labs only flag it when it drops below 12.
- Thyroid panel: TSH (best range 1.0–2.0), free T3, free T4 and TPO antibodies.
- Homocysteine: a marker for methylation and heart health. Best is under 8 µmol/L.
- If you take metformin: B12 and methylmalonic acid (MMA) every year. MMA catches low B12 sooner than B12 alone.