Timing Protocol
What researchers say about when, how and with what to take inositol, and how strong the evidence is.
The verdict on Inositol overall
Leaning for
Inositol is worth taking.
15 sources: 4 positive, 11 partly
Short answer
Before bed for sleep; or with meals for metabolic support
One verdict, worked out from every counted mention. One dot is one source: a researcher or a study. Tap a dot to see its receipt.
positive partly neutral negative Each researcher and each study counts once per claim, however often they come up.
Taking inositol before bed improves sleep.
3 sources: 2 positive, 1 partly.
Researchers say
2 positive, 1 partly
Andrew Huberman, 3 mentions on this claim
Positive Video
on Huberman Lab, at 1:57:31 · positive
“900 milligrams of myo-inositol in the 30 to 60 minutes before sleep to improve my sleep and it has been doing that very dramatically”
on Huberman Lab, at 1:18:52 · positive
“And what I find is not only does it greatly enhance my ability to fall asleep quickly,”
on Huberman Lab, at 28:33 · positive
“the depth and quality of sleep that I've been obtaining on myo-inositol is pretty remarkable.”
Cynthia Thurlow, on The Dr. Hyman Show, at 49:45
Positive Video · Opinion
Open the tape at 49:45 →“it's very helpful for Sleep architecture goes back to inducing and maintaining sleep”
Izabella Wentz, on The Dr. Hyman Show, at 53:26
Partly Video · Opinion
Open the tape at 53:26 →“I utilize myoinositol and carnitine in the evenings to help with blood sugar swings and that usually helps”
Studies show
No study counted yet.
Andrew Huberman Video · positive · 3 mentions
on Huberman Lab, at 1:57:31 · positive · Opinion
“900 milligrams of myo-inositol in the 30 to 60 minutes before sleep to improve my sleep and it has been doing that very dramatically”
on Huberman Lab, at 1:18:52 · positive · Opinion
“And what I find is not only does it greatly enhance my ability to fall asleep quickly,”
on Huberman Lab, at 28:33 · positive · Opinion
“the depth and quality of sleep that I've been obtaining on myo-inositol is pretty remarkable.”
Cynthia Thurlow, on The Dr. Hyman Show, at 49:45 Video · positive · Opinion
“it's very helpful for Sleep architecture goes back to inducing and maintaining sleep”
Izabella Wentz, on The Dr. Hyman Show, at 53:26 Video · partly · Opinion
“I utilize myoinositol and carnitine in the evenings to help with blood sugar swings and that usually helps”
Built from every credited researcher and cited study on each claim.
Taking inositol before bed improves sleep.
Andrew Huberman, 3 mentions on this claim
Positive Video
on Huberman Lab, at 1:57:31 · positive
“900 milligrams of myo-inositol in the 30 to 60 minutes before sleep to improve my sleep and it has been doing that very dramatically”
on Huberman Lab, at 1:18:52 · positive
“And what I find is not only does it greatly enhance my ability to fall asleep quickly,”
on Huberman Lab, at 28:33 · positive
“the depth and quality of sleep that I've been obtaining on myo-inositol is pretty remarkable.”
Cynthia Thurlow, on The Dr. Hyman Show, at 49:45
Positive Video · Opinion
Open the tape at 49:45 →“it's very helpful for Sleep architecture goes back to inducing and maintaining sleep”
Izabella Wentz, on The Dr. Hyman Show, at 53:26
Partly Video · Opinion
Open the tape at 53:26 →“I utilize myoinositol and carnitine in the evenings to help with blood sugar swings and that usually helps”
Inositol is worth taking.
Researchers
Andrew Huberman, 8 mentions on this claim
Positive Video
on Huberman Lab, at 1:25:00 · positive
“The lowest number of side effects is associated with 900 milligram myo-i nositol taken about 30 minutes before sleep”
on Huberman Lab, at 3:56:28 · positive
“I talked about inositol and in particular taking 900 milligrams of myo-inositol prior to sleep, which is something that I do,”
on Huberman Lab, at 2:07:37 · positive
“the sleep I've been getting on inositol is extremely deep and does seem to lead to enhanced levels of focus and alertness during the day”
on Huberman Lab, at 1:56:42 · positive
“the depth and quality of sleep that I've been obtaining on myo-inositol is pretty remarkable.”
on Huberman Lab, at 23:50 · positive
“take inositol at 900 mg of myo-inositol every third night or so in order to improve my sleep.”
on Huberman Lab, at 1:18:52 · positive
“And what I find is not only does it greatly enhance my ability to fall asleep quickly,”
on Huberman Lab, at 1:55:09 · positive
“It's something that I found greatly enhances the depth and quality of my sleep.”
on Huberman Lab, at 28:33 · positive
“the depth and quality of sleep that I've been obtaining on myo-inositol is pretty remarkable.”
Elizabeth Velham, on The Dr. Hyman Show, at 29:23
Positive Video · Opinion
Open the tape at 29:23 →“myo-inositol and inositol which actually helps improve insulin sensitivity”
Dr. Elizabeth Boham, on The Dr. Hyman Show, at 28:43
Positive Video · Opinion
Open the tape at 28:43 →“has some myosl and deyro andosol which actually helps improve insulin sensitivity”
Studies
Controlled trial, N Engl J Med, 1999, PMID 10219066
Positive Study
Read the paper on PubMed →D-Chiro-inositol increases the action of insulin in patients with the polycystic ovary syndrome, thereby improving ovulatory function and decreasing serum androgen concentrations, blood pressure, and plasma triglyceride concentrations.
Researchers
Dr. Heather Huddleston, on The Dr. Hyman Show, at 24:05
Partly Video · Opinion
Open the tape at 24:05 →“i will say anecdotally i do have patients who seem to become more regular in their cycling uh when they're taking it”
Izabella Wentz, on The Dr. Hyman Show, at 53:26
Partly Video · Opinion
Open the tape at 53:26 →“I utilize myoinositol and carnitine in the evenings to help with blood sugar swings and that usually helps”
Dr. Kyle Gillett, on Huberman Lab, at 1:02:10
Partly Video · Opinion
Open the tape at 1:02:10 →“Other tools that can help are inositol, so myo-inositol is an insulin sensitizer.”
Studies
Systematic review, Cochrane Database Syst Rev, 2004, PMID 15106232
Partly Study
Read the paper on PubMed →The currently available evidence does not indicate a clear benefit from the use of inositol in depression.
Pooled analysis, PLoS One, 2015, PMID 25719363
Partly Study
Read the paper on PubMed →Nutritional supplements probiotics combined with diet (RR 0.40; 95% CI 0.20, 0.78) and myo-inositol (RR 0.40; 95% CI 0.16, 0.99) were assessed in one trial each and showed a beneficial effect.
Pooled analysis, Medicine (Baltimore), 2015, PMID 26496267
Partly Study
Read the paper on PubMed →On the basis of current evidence, myo-inositol supplementation reduces the development of GDM, although this conclusion requires further evaluation in large-scale, multicenter, blinded, randomized controlled trials.
Pooled analysis, Cochrane Database Syst Rev, 2015, PMID 26678256
Partly Study
Read the paper on PubMed →Whilst the results of this review indicate that myo‐inositol shows promise in preventing the onset of GDM, there is currently insufficient evidence to support its routine adoption.
Pooled analysis, Cochrane Database Syst Rev, 2018, PMID 30570133
Partly Study
Read the paper on PubMed →In light of available evidence of very low quality, we are uncertain whether MI improves live birth rate or clinical pregnancy rate in subfertile women with PCOS undergoing IVF pre-treatment taking MI compared to standard treatment.
Pooled analysis, Cochrane Database Syst Rev, 2023, PMID 36790138
Partly Study
Read the paper on PubMed →Whilst the results of this review show that myo‐inositol has promise in preventing the onset of gestational diabetes, there is currently insufficient evidence to support its routine adoption.
Pooled analysis, J Clin Endocrinol Metab, 2024, PMID 38163998
Partly Study
Read the paper on PubMed →The evidence supporting the use of inositol in the management of PCOS is limited and inconclusive.
Pooled analysis, Front Endocrinol (Lausanne), 2026, PMID 41757236
Partly Study
Read the paper on PubMed →A stronger reduction was observed vs. placebo/FA(MD: -23.40, 95% CI: [-32.80, -14.01], P < 0.00001, I 2 = 68%, P -heterogeneity = 0.04, GRADE: Low) and no significant difference in the MET subgroup.
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