About D-Chiro-Inositol
A minor inositol isomer involved in insulin signaling. Most commonly studied alongside Myo-Inositol for PCOS at a 40:1 ratio. Well tolerated at typical doses. No established RDA/UL.
What D-Chiro-Inositol supports
- May support hormonal balance in PCOS (with Myo-Inositol)
- Involved in insulin signaling pathways
How much D-Chiro-Inositol to take
Clinical studies typically use 25–100 mg of D-Chiro-Inositol. Typical D-Chiro-Inositol dose; often paired with Myo-Inositol in a 40:1 ratio (e.g. 2000 mg Myo : 50 mg DCI).
- Effective range
- 25–100 mg
Clinical evidence
Moderate clinical evidence. A few trials support its use alongside myo-inositol for PCOS at a 40:1 ratio
NIH Fact Sheet