Best D-Chiro-Inositol for Hormones
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Clinical dose: 25–100 mg
D-Chiro-Inositol and hormones
When it comes to hormones, D-Chiro-Inositol is one of the most supporting nutrients to consider. 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.
How much d-chiro-inositol do you need
Research points to 25–100 mg as the effective range for 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). Lower doses may provide some benefit, but most studies showing clear results used this range.
What the research says
The clinical evidence for d-chiro-inositol in hormones is moderate. A few trials support its use alongside myo-inositol for PCOS at a 40:1 ratio Learn more

