Women/Hormonal/Mood

Inositol

Sugar-like compound that improves insulin sensitivity and ovulation in PCOS, and may reduce panic attacks. Best for women with hormonal imbalances.

Inositol

Sugar-like compound that improves insulin sensitivity and ovulation in PCOS, and may reduce panic attacks. Best for women with hormonal imbalances.

score

evidence

Safe

risk

Proven Benefits

01Improves PCOS and ovulation

02Improves insulin sensitivity

03Reduces gestational diabetes risk

04Reduces panic attack frequency

05May support fertility outcomes

06May improve thyroid in Hashimoto's

07May reduce OCD symptoms

Chemical Forms

Recommended

Myo-inositol
Myo-inositol + D-chiro-inositol (40:1)

Avoid

Unspecified inositol blends (lack standardization)

Expert Note

Myo-inositol is the predominant form studied in PCOS and metabolic trials. Products combining myo-inositol and D-chiro-inositol in a 40:1 ratio replicate physiological serum levels and show synergistic effects on insulin and ovulation. Avoid non-standardized blends that do not specify the ratio or individual doses.

Protocol

Amount

2-4 g

Frequency

Once or twice daily

When

Split into two doses with meals for PCOS or metabolic goals; any time for mood support.

Condition-Based Dosing

PCOS / insulin resistance

2 g twice daily (4 g total) for at least 3 months— Many trials use 2 g twice daily. Allow 3-6 months to assess ovulation and testosterone changes.

Gestational diabetes prevention

2 g twice daily starting in first trimester— Use under medical supervision throughout pregnancy.

Panic disorder

12-18 g daily in 2-3 divided doses— Start at 3-6 g daily and titrate up weekly to minimize nausea or loose stools.

Safety & Limits

Upper Safe Limit

12-18 g/day is the highest studied range for panic disorder without serious adverse events; no official UL established.

Cycling

Safe for continuous use

Contraindications

Bipolar disorder — high-dose inositol may theoretically trigger manic symptoms in susceptible individuals

Synergies

Folate

Folate works with inositol to support oocyte quality and reduce homocysteine in fertility and PCOS protocols.

Vitamin D3

Vitamin D deficiency is common in PCOS; correcting it may amplify inositol's metabolic and fertility benefits.

Avoid Combining With

✕Lithium carbonate (theoretically competes in inositol signaling pathways — consult prescriber)

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