Inositol Powder 250 grams


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SKU: N371 Category:



Supports emotional wellness, behavior and mood

Promotes healthy ovarian function

Inositol is a part of the B-complex family. Myo-inositol is the primary form of inositol found in the central nervous system and plays an important role in cell membrane formation. It serves as part of the phosphatidylinositol second messenger system, supporting serotonin, norepinenephrine and cholinergic receptor function. As a result, inositol may support healthy mood, emotional wellness and behavior, and help lessen occasional nervous tension. Research also shows that myo-inositol helps to support healthy ovulatory activity, ovarian function, and reproductive system function.

Inositol Powder (Myo Inositol form)

Product # N371 (250 grams) $35.20

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Inositol (powder) – Supplement Facts – two scoops contain: inositol (as myo-inositol)4.1 g.
Suggested use: 2 scoops, 1–2 times daily, with or between meals, or as directed by a health professional.
servings per container: 61

Myo-inositol in the Treatment of Mood and Behavior Disorder

According to a study performed in Israel (1): “These results suggest that inositol has therapeutic effects in the spectrum of illness responsive to serotonin selective re-uptake inhibitors, including depression, panic and OCD, and is not beneficial in schizophrenia, Alzheimer’s ADDH, autism or ECT-induced cognitive impairment.”

The doses of inositol used in the Israeli studies ranged from 12 to 18 grams of inositol daily with significant improvements noted after 4 to 6 weeks of treatment with inositol.

Myo-inositol in the Treatment of PCOS-related Infertility and Non-PCOS Egg Quality Infertility

Myo-inositol has been widely studied and found effective for PCOS-related causes of infertility and some non-PCOS egg quality improvement. These have all been human studies. In fact, myo-inositiol is one of the better-studied agents for this purpose.

Inositol is part of the vitamin B complex. It occurs as 9 different isomers, but only two of these are of interest in fertility: myo-inositol (MYO) and d-chiro-inositol (DCI)

Both MYO and DCI have been studied and found useful in the treatment of PCOS.(1-14) However, only MI has been show to be present in follicular fluid and only MI was able to improve oocyte and embryo quality (1,2,9,12,15), ovulation induction (6-8,10-11) and hormone balance. (3-5,13) DCI does not have even remotely as much research behind it as MYO. (16) Therefor, for fertility issues with or without PCOS, I recommend the myo-inositol form. Please note that some of these studies used melatonin in combination with myo-inositol (2,11-12). Melatonin alone has also been studied and found useful for improving egg quality. (17-18)

Myo-inositol may also improve other associated risks of PCOS (sugh as high triglycerides and blood sugars) with or without an effect on egg quality. (3,5,7)

Most forms of inositol available in health food stores are probably the myo-inositol form. However, many products do not specify this on the label. I would always want to verify with the manufacturer before using.

A product called “Pregnitude” is available, containing myo-inositol plus folic acid. Several studies used myo-inositol with folic acid and found improved egg quality in PCOS. (9,11)  All pre-pregnant women should already be getting folic acid from their multiple because of it’s importance in preventing spina bifida. This makes the “magic” in Pregnitude the myo-inositol. Pregnitude is individually packaged by 2 gram serving, and that is convenient, but the price is double what what most myo-inositol powders are.

Daily dose of myo-inositol for improving egg quality is 2-4 grams per day. This can be taken as 2 grams, once or twice daily.

Myo-inositol product has a mild sweet taste and can be taken in water, smoothie, Super Shake — whatever makes it easiest.

Egg Quality Protocol, Especially for PCOS Patients (Dr. Myatt’s recommendation based on the studies)

I.) myo-inositol: 2-4 grams per day
II.) melatonin: 3mg per day (take this at bedtime)
III.) folic acid: 400mcg (this amount or more should already be in a good multi-vitamin. Maxi Multi contains 800mcg of the natural form of folic acid, tetra-methyl folate)

References (wellness, behavior, mood)

1.) Levine J., Ministry of Health Mental Health Center, Faculty of Health Sciences, Ben Gurion University of the Negev, Beersheva, Israel. Controlled trials of inositol in psychiatry. Eur Neuropsychopharmacol. 1997 May;7(2):147-55.

References (fertility, PCOS, egg quality)

1.) Ciotta L, Stracquadanio M, Pagano I, Carbonaro A, Palumbo M, Gulino F. Effects of myo-inositol supplementation on oocyte’s quality in PCOS patients: a double blind trial. Eur Rev Med Pharmacol Sci. 2011 May;15(5):509-14.
2.) Carlomagno G, Nordio M, Chiu TT, Unfer V. Eur J Obstet Gynecol Reprod Biol. 2011 Dec;159(2):267-72. Epub 2011 Aug 10.
Contribution of myo-inositol and melatonin to human reproduction.
3.) Costantino D, Minozzi G, Minozzi E, Guaraldi C. Metabolic and hormonal effects of myo-inositol in women with polycystic ovary syndrome: a double-blind trial. Eur Rev Med Pharmacol Sci. 2009 Mar-Apr;13(2):105-10.
4.) Donà G, Sabbadin C, Fiore C, Bragadin M, Giorgino FL, Ragazzi E, Clari G, Bordin L, Armanini D. Inositol administration reduces oxidative stress in erythrocytes of patients with polycystic ovary syndrome.Eur J Endocrinol. 2012 Apr;166(4):703-10. Epub 2012 Jan 5.
5.) Genazzani AD, Lanzoni C, Ricchieri F, Jasonni VM. Myo-inositol administration positively affects hyperinsulinemia and hormonal parameters in overweight patients with polycystic ovary syndrome.Gynecol Endocrinol. 2008 Mar;24(3):139-44
6.) Gerli S, Mignosa M, Di Renzo GC. Effects of inositol on ovarian function and metabolic factors in women with PCOS: a randomized double blind placebo-controlled trial. Eur Rev Med Pharmacol Sci. 2003 Nov-Dec;7(6):151-9.
7.) Gerli S, Papaleo E, Ferrari A, Di Renzo GC. Randomized, double blind placebo-controlled trial: effects of myo-inositol on ovarian function and metabolic factors in women with PCOS. Eur Rev Med Pharmacol Sci. 2007 Sep-Oct;11(5):347-54.
8.) Morgante G, Orvieto R, Di Sabatino A, Musacchio MC, De Leo V. The role of inositol supplementation in patients with polycystic ovary syndrome, with insulin resistance, undergoing the low-dose gonadotropin ovulation induction regimen.Fertil Steril. 2011 Jun 30;95(8):2642-4. Epub 2011 Feb 5.
9.) Papaleo E, Unfer V, Baillargeon JP, Fusi F, Occhi F, De Santis L. Fertil Steril. 2009 May;91(5):1750-4. Epub 2008 May 7. Myo-inositol may improve oocyte quality in intracytoplasmic sperm injection cycles. A prospective, controlled, randomized trial.
10.) Papaleo E, Unfer V, Baillargeon JP, De Santis L, Fusi F, Brigante C, Marelli G, Cino I, Redaelli A, Ferrari A. Myo-inositol in patients with polycystic ovary syndrome: a novel method for ovulation induction.Gynecol Endocrinol. 2007 Dec;23(12):700-3. Epub 2007 Oct 10.
11.) Rizzo P, Raffone E, Benedetto V. Effect of the treatment with myo-inositol plus folic acid plus melatonin in comparison with a treatment with myo-inositol plus folic acid on oocyte quality and pregnancy outcome in IVF cycles. A prospective, clinical trial. Eur Rev Med Pharmacol Sci. 2010 Jun;14(6):555-61.
12.) Unfer V, Raffone E, Rizzo P, Buffo S. Gynecol Endocrinol. 2011 Nov;27(11):857-61. Epub 2011 Apr 5. Effect of a supplementation with myo-inositol plus melatonin on oocyte quality in women who failed to conceive in previous in vitro fertilization cycles for poor oocyte quality: a prospective, longitudinal, cohort study.
13.) Unfer V, Carlomagno G, Dante G, Facchinetti F. Effects of myo-inositol in women with PCOS: a systematic review of randomized controlled trials. Gynecol Endocrinol. 2012 Jul;28(7):509-15. doi: 10.3109/09513590.2011.650660. Epub 2012 Feb 1.
14.) Nestler JE, Jakubowicz DJ, Reamer P, Gunn RD, Allan G. Ovulatory and metabolic effects of D-chiro-inositol in the polycystic ovary syndrome. N Engl J Med. 1999 Apr 29;340(17):1314-20.
15.) Galletta M, Grasso S, Vaiarelli A, Roseff SJ. Bye-bye chiro-inositol – myo-inositol: true progress in the treatment of polycystic ovary syndrome and ovulation induction. Eur Rev Med Pharmacol Sci. 2011 Oct;15(10):1212-4.
16.) Galazis N, Galazi M, Atiomo W. D-Chiro-inositol and its significance in polycystic ovary syndrome: a systematic review.Gynecol Endocrinol. 2011 Apr;27(4):256-62. Epub 2010 Dec 10.
17.) Batioglu AS, Sahin U, Gürlek B, Oztürk N, Unsal E. The efficacy of melatonin administration on oocyte quality. Gynecol Endocrinol. 2012 Feb;28(2):91-3. Epub 2011 Jul 20.
18.) Tamura H, Takasaki A, Miwa I, Taniguchi K, Maekawa R, Asada H, Taketani T, Matsuoka A, Yamagata Y, Shimamura K, Morioka H, Ishikawa H, Reiter RJ, Sugino N. Oxidative stress impairs oocyte quality and melatonin protects oocytes from free radical damage and improves fertilization rate. J Pineal Res. 2008 Apr;44(3):280-7.


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