75
SCORE
Myo-inositol
PCOS · Metabolic · Mental health
Tier 2 — Promising
What it is
One of the best-supported supplements for women with PCOS. Multiple trials confirm it improves insulin sensitivity, helps restore regular ovulation, and lowers elevated male hormones. The 40:1 ratio of myo to D-chiro-inositol mirrors what your body naturally produces. Very safe with minimal side effects. Also shows promise for mental health support.
Efficacy
4/5
Safety
5/5
Research
3/5
Onset
2/5
Cost
3/5
Drug-int.
4/5
Dose
2,000–4,000 mg/day; 40:1 myo:D-chiro-inositol combination preferred for PCOS
Time of day & tips
Can be taken with or without food. Split into 2 doses (morning and evening) for steady levels. Mild GI discomfort possible at higher doses — start low and increase gradually.
Compare or learn more
Compare with another supplement →
Browse by symptom →
Open the full interactive view →