Inositol

What the research shows

No concerns

none of the findings here link it to harm

A sugar alcohol found in fruits, beans, grains and nuts.

It is a sugar alcohol with half the sweetness of table sugar.12

  • Vegan
  • Vegetarian

What research says

Studies in people

  • Benefit

    Pregnancy blood sugar3

    In pregnant women with gestational diabetes, inositol supplements were linked to lower blood sugar and fewer early births.

  • Benefit

    Diabetes in pregnancy4

    Myo-inositol may lower the chance of gestational diabetes, but scientists are not yet sure.

  • Benefit

    Cholesterol and blood fats5

    In people with metabolic diseases, inositol supplements may lower triglycerides and total and LDL cholesterol, but not HDL.

  • Benefit

    Hormones and blood sugar in PCOS6

    In women with PCOS, taking D-chiro-inositol improved insulin sensitivity and hormone levels, especially in those with diabetic relatives.

  • Benefit

    Blood sugar in pregnancy7

    In pregnant women, myo-inositol lowered a blood marker linked to insulin resistance.

Study type not stated

  • Benefit

    Cancer prevention8

    Inositol and IP6 are being studied for helping prevent cancer and boost the immune system.

The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least one finding in people. When most findings in people point one way, the page leans that way (“Mostly”), and every finding is still shown. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.

Products

The 6 most-scanned of 944 products on Open Food Facts that list inositol.

  • Monster Energy Ultra Monster · 500 ml 6 additives
  • DOUBLESHOT ENERGY ENERGY COFFEE BEVERAGE STARBUCKS · 15oz 2 additives
  • Monster Energy Monster · 500 ml 6 additives
  • Monster Energy Ultra Monster · 350 ml 4 additives
  • Monster Juiced Mango Loco Monster · 500 ml 10 additives
  • Monster Juiced khaotic Monster energy · 500 ml 10 additives

References

  1. 1inositol: ingredient taxonomy entry. Open Food Facts.
  2. 2Inositol. Wikipedia. Accessed September 29, 2026. CC BY-SA 4.0.
  3. 3Lin L, Zhou L, Zhang X, Xiao Y. Efficacy of inositol supplementation for the prevention and treatment of gestational diabetes in pregnant women: Results from an umbrella meta-analysis. Int J Gynaecol Obstet. 2026;174(2):655-670. doi:10.1002/ijgo.70854
  4. 4Motuhifonua SK, Lin L, Alsweiler J, Crawford TJ, Crowther CA. Antenatal dietary supplementation with myo-inositol for preventing gestational diabetes. Cochrane Database Syst Rev. 2023;2(2):CD011507. doi:10.1002/14651858.CD011507.pub3
  5. 5Tabrizi R, Ostadmohammadi V, Lankarani KB, et al. The effects of inositol supplementation on lipid profiles among patients with metabolic diseases: a systematic review and meta-analysis of randomized controlled trials. Lipids Health Dis. 2018;17(1):123. doi:10.1186/s12944-018-0779-4
  6. 6Genazzani AD, Santagni S, Rattighieri E, et al. Modulatory role of D-chiro-inositol (DCI) on LH and insulin secretion in obese PCOS patients. Gynecol Endocrinol. 2014;30(6):438-43. doi:10.3109/09513590.2014.897321
  7. 7Özay AC, Özay ÖE, Edebal OH, et al. Effect of Myo-Inositol Treatment on Serum Asprosin Levels of Pregnant Women: A Prospective Randomized Controlled Pilot Study. J Pregnancy. 2025;2025:8816154. doi:10.1155/jp/8816154
  8. 8Vucenik I, Shamsuddin AM. Protection against cancer by dietary IP6 and inositol. Nutr Cancer. 2006;55(2):109-25. doi:10.1207/s15327914nc5502_1