Myo-Inositol
The insulin-signalling sugar alcohol your ovaries run on.
What it is
Myo-inositol is a naturally occurring sugar alcohol (a vitamin-like compound) found in citrus, beans and whole grains, and made by your own body from glucose. Inside the ovary it acts as a second messenger for FSH signalling, which is why it shows up in almost every modern fertility formula.
Why it’s used
- Supports healthy insulin sensitivity, a key lever in ovulatory function.
- Involved in FSH signalling and follicle development inside the ovary.
- Commonly used by people with irregular or unpredictable cycles.
- Well tolerated at typical doses, with mild GI upset the most reported effect.
What research says
- Multiple randomized trials in people with PCOS report improved ovulation rates and menstrual regularity with myo-inositol supplementation over 3–6 months.
- Meta-analyses suggest myo-inositol improves markers of insulin resistance (HOMA-IR) and may improve oocyte quality measures in ART cycles.
- Most protocols pair myo-inositol with D-chiro inositol in a 40:1 ratio, mirroring the ratio found in healthy human plasma.
Typical dose: 2,000 mg twice daily (4,000 mg total) is the most studied protocol.
Lunara products with Myo-Inositol
References
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Educational information only. These statements have not been evaluated by the FDA. This content is not medical advice and Lunara products are not intended to diagnose, treat, cure, or prevent any disease.