Inositol vs Metformin for hormones
Short answer: For hormones, more users report improvement with Inositol — 100% of 5 reports, versus 33% of 6 for Metformin.
Inositol has 209 meta-analyses and 248 randomized trials on PubMed; Metformin has 1,367 and 3,450.
Based on 429 reports about Inositol and 175 about Metformin. Not medical advice.
| Inositol Supplement | Metformin Medication | |
|---|---|---|
| Users say it helped | 67%helped167 reports · high confidence | 29%helped67 reports · medium confidence |
| Verdict | Mostly positive | Mixed |
| Research | AResearch: Strong | AResearch: Strong |
| Meta-analyses / RCTs | 209 / 248 | 1,367 / 3,450 |
| Mainly used for | ||
| Anxiety % reporting improvement | 90% (100) | — |
| Mood % reporting improvement | 88% (60) | 50% (2) |
| Sleep % reporting improvement | 100% (43) | 100% (2) |
| Blood sugar % reporting improvement | 100% (3) | 96% (27) |
| Focus % reporting improvement | 79% (14) | 67% (3) |
| Common side effects | stomach issues, diarrhea, brain fog, drowsiness | stomach issues, diarrhea, b12 depletion, nausea |
| Typical dose reported | 10-25 g | Not listed |
The evidence supporting the use of inositol in the management of PCOS is limited and inconclusive. Clinicians and their patients should consider the uncertainty of the evidence together with individual values and preferences when engaging in shared decision-making regarding the use of inositol for PCOS.
J Clin Endocrinol Metab, 2024 ↗“I personally use Inositol only on nights I may know sleep will be challenging... extra good sleep or perception of such.”
The choice of metformin or COCP treatment should be based on symptoms, noting some biochemical benefits from combination treatment targeting both major endocrine disturbances seen in PCOS (hyperinsulinemia and hyperandrogenism).
J Clin Endocrinol Metab, 2024 ↗“Metformin currently has enough data for me personally to feel comfortable not only taking it myself (and my wife), but also recommending it to my patients.”
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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate