Best Vitamin B8 (Inositol) Supplements AI pick
Chosen by an AI model from its trained knowledge, with its reasoning.
AI pick (line): Theralogix Ovasitol
Myo- and D-chiro-inositol powder in the 40:1 ratio studied for PCOS, in convenient single-dose packets.
Not for: People who are fine measuring plain myo-inositol powder at lower cost, and anyone using it in place of medical PCOS care.
AI picks by need
For plain myo-inositol, budget
NOW Foods Inositol Powder (line)
Bulk myo-inositol at gram doses.
Not for: People who want the premixed ratio.
What the AI looks for in Vitamin B8 (Inositol) Supplements
- Dose
- PCOS studies typically use about 2 to 4 g a day of myo-inositol. Capsules often contain far less, so powder is practical.
- Ratio
- 40:1 myo- to D-chiro-inositol mirrors the plasma ratio. High-D-chiro products are not better. Excess D-chiro-inositol may be counterproductive for ovarian function.
Brands that matter
- Theralogix: 40:1 packets.
- NOW Foods: Bulk inositol powder.
- Wholesome Story: Popular 40:1 capsules.
What to avoid
- Low-dose capsules that require many pills a day.
Questions
Is inositol really a B vitamin?
No. The body makes it, so it is not an essential vitamin, though it is sold as 'B8'.