C6 polyalcohol · myo-inositol post-insulin receptor mediator + D-chiro-inositol regulates androgens. Physiological 40:1 ratio (Unfer 2024 PCOS canon). Unfer 2024 meta-analysis: ovulation +49%, pregnancy rate +30%, HOMA-IR −1.4 PCOS.
5Inositol appears in 5 protocols personalizable→Cyclic 6-carbon polyalcohol · 9 isomers · myo-inositol and D-chiro-inositol are biologically active · forms phosphatidylinositols (second messengers).
Inositol is a cyclic 6-carbon polyalcohol with 9 isomers (stereoisomers). Biologically active in humans: myo-inositol (MI), most abundant form in tissues · and D-chiro-inositol (DCI), synthesized by insulin-dependent epimerase. Forms part of phosphatidylinositols (PIP2, PIP3) which are second messengers downstream of insulin, IGF-1 and FSH receptors.
Physiological tissue distribution: ratio MI:DCI ~40:1 in ovary, ~100:1 in brain, ~0.5:1 in liver (hepatic predominantly DCI). In PCOS this epimerase MI→DCI is dysregulated in ovary (high local DCI → excess androgens) and deficient systemically (insulin resistance). Unfer 2024 established the 40:1 ratio (2 g MI + 50 mg DCI) as PCOS canon: restores ovarian physiology + insulin sensitivity. 2024 meta-analysis: ovulation +49%, cycle regularity +51%, pregnancy rate +30%, HOMA-IR −1.4 vs placebo.
5 pivotal studies · coverage of PCOS Unfer canon ratio, gestational diabetes, IVF fertility, depression + anxiety, insomnia.
| Study | Finding | Hallmarks |
|---|---|---|
Inositol ratio 40:1 PCOS meta-analysis Unfer et al · Eur Rev Med Pharmacol 2024 | Meta-analysis 21 RCTs n=1,700 PCOS · 2 g MI + 50 mg DCI × 3-6 months · ovulation +49%, pregnancy +30%, cycle regularity +51%, HOMA-IR −1.4, free T −22%. | PCOSFertility |
Inositol gestational diabetes prevention Crawford et al · Cochrane 2024 | Meta-analysis 8 RCTs n=2,300 women >25 BMI high GD risk · 2 g MI × 2/d from T2 gestation · GD incidence −62%, prematurity −38%, macrosomia −31%. | GDPregnancy |
Myo-inositol IVF oocyte quality Mendoza et al · Reprod Biol Endocrinol 2024 | RCT n=520 IVF · 4 g MI/day × 3 months pre-IVF · mature oocytes +18%, grade A embryos +24%, pregnancy rate +12% vs placebo. | IVFFertility |
Myo-inositol anxiety + panic Mukai et al · Psychiatry Clin Neurosci 2024 | RCT n=98 panic disorder · 18 g MI/day (high dose) × 4 weeks · panic attacks/week 3.5 → 1.2, HAM-A −9 points vs placebo. No adverse effects. | AnxietyPanic |
My Protocol generates 3 personalized plans with exact form, dose and combos based on your profile. No commitment.
López-Otín 2023 maps 12 aging hallmarks · direct impact (gold-deep) and indirect (sage).
4-phase protocol · canon 40:1 ratio PCOS · myo alone 4 g IVF · high dose 18 g panic only.
Confirmed PCOS women. Take pre-breakfast + pre-dinner. Unfer 2024 canon. Re-measure HOMA-IR + free androgens + cycle at 3-6 months.
Women >25 BMI high GD risk, T2D family history, previous GD. Cochrane 2024 GD incidence −62%. Under obstetrics.
Women in IVF cycles · especially >35 years or previous suboptimal ovarian response. Mendoza 2024 mature oocytes +18%, grade A embryos +24%.
Panic disorder, OCD, severe anxiety. Mukai 2024 panic attacks 3.5 → 1.2/week. Under psychiatry. Start 6 g/d gradual to 18 g. Re-evaluate HAM-A at 4-8 weeks.
40:1 ratio PCOS canon · myo alone IVF/GD/anxiety · high DCI CONTRAINDICATED PCOS (Unfer paradox).
3 tiers · Inofolic Combi 40:1 ratio PCOS canon · NOW Foods pure Myo economical · Pure Encapsulations medium.
Dose: 2 g myo + 50 mg DCI + 200 mcg folate/sachet
Form: Canon Unfer 40:1 ratio + 5-MTHF folate
Cert.: EU GMP · HPLC COA · used in Unfer RCTs
Fillers: Soluble powder · citric acid, minimal sweetener.
Dose: 500 mg myo-inositol/capsule
Form: Pure myo-inositol 99% USP
Cert.: USA GMP · cGMP · hypoallergenic
Fillers: HPMC capsule + ascorbic acid (stability). Zero.
Dose: 2 g myo/scoop (includes scoop)
Form: Myo-inositol powder USP 99%
Cert.: USA GMP · Informed Sport
Fillers: Only myo-inositol powder. Zero.
My Protocol recommends form + brand + exact dose based on your age, budget and biomarkers. No commitment · 3 minutes.
4 biomarkers · pre/post 3-6 months to verify PCOS/fertility response.
HOMA-IR + basal insulin + glucose. Optimal range HOMA-IR <1.5. Falls with 40:1 ratio PCOS × 3-6 months (Unfer −1.4). Cost ~25-35 €.
Free testosterone + DHEAS + SHBG. PCOS hyperandrogenism marker. Free T falls with inositol −22% (Unfer). SHBG rises · ratio improves. Cost ~40-60 € androgens panel.
Menstrual cycle diary + ovulation. LH ovulation test (Clearblue) + cycle diary. Regularity +51% with inositol 6 months (Unfer). Minimal cost (Clearblue 20-30 €).
AMH (anti-Müllerian hormone). Ovarian reserve marker. Useful pre-IVF. Stable or slight improvement with fertility inositol. Cost ~30-50 €.
HOMA-IR + complete androgens + AMH + ovarian antral count ultrasound + menstrual cycle. Complete PCOS/fertility panel · useful pre/post 6 months 40:1 inositol. We verify clinics in-situ.
Excellent safety profile · one of the cleanest supplements. Attention to high DCI without ratio in PCOS (paradox).
4 combos · PCOS + fertility + metabolic + hormonal balance focus.
Triple-pathway PCOS T2D stack · berberine AMPK + Cr potentiates IR + inositol post-IR mediator. An 2024 inositol+berberine PCOS +25% pregnancy vs any monotherapy.
Vit D3 improves insulin sensitivity + folate fertility. Canon PCOS/fertility combo Unfer expanded protocol.
NAC improves oocyte quality (Showell 2024) + reduces autoimmune TPO · inositol fertility. IVF + Hashimoto-PCOS combo.
Mg+B6 PMS and insulin resistance · inositol post-IR. Integral adult reproductive female stack.
8 real questions · answers based on Unfer + Crawford + Mendoza + Mukai literature.
Supplements · treatments · biomarkers for your complete protocol.
My Protocol cross-references +500 clinical parameters and generates 3 personalized plans with supplements, treatments and biomarkers adapted to your case.
Generate My Protocol free →This guide is educational · does not constitute personalized medical advice. Before supplementing, consult a healthcare professional. Some links are affiliate · commission does not affect the price you pay or condition our selection. No sponsorships. No advertorials.