Ingredient Information

Summary

Inositol is a naturally occurring compound often grouped with the B vitamins, though technically it is a type of sugar alcohol. It plays an important role in cell signalling, nerve function, and fat metabolism. Inositol contributes to normal psychological function and has been studied for its potential to support mood balance, fertility, and metabolic health. In supplements, it is commonly used in forms such as myo-inositol and D-chiro-inositol, which may benefit women’s reproductive health and insulin sensitivity.

Key Facts

  • Type: Carbocyclic sugar alcohol
  • Natural source: Fruits, beans, grains, and nuts
  • Typical supplemental dose: 500–2,000 mg per day
  • Used for: Psychological function, reproductive health, metabolic support, nerve signalling
  • First discovered: Early 20th century

What Is Inositol?

Inositol refers to a group of naturally occurring compounds with the same chemical formula but slightly different structures, known as isomers. The most common form is myo-inositol, which is found widely in food and used in supplements. Inositol is essential for the formation of cell membranes and acts as a second messenger in many biological processes, particularly those involving hormones like insulin and neurotransmitters such as serotonin. It is sometimes referred to as “vitamin B8,” though it is not officially classified as a vitamin because the body can produce it from glucose.

How It Works In The Body

Inositol is involved in numerous cellular functions. It plays a key role in cell signalling pathways, particularly those linked to insulin sensitivity and neurotransmitter activity. By supporting normal nerve conduction and communication between brain cells, inositol contributes to mood regulation and psychological wellbeing. It also helps regulate lipid metabolism in the liver and supports ovarian function, which is why it is often studied in relation to women’s reproductive health.

Safety & Interactions

  • Inositol is generally recognised as safe when taken at typical supplemental doses.
  • Mild side effects such as nausea, dizziness, or digestive discomfort may occur at high doses.
  • Inositol may influence blood sugar control, so individuals with diabetes or those taking insulin or blood sugar–lowering medication should seek medical advice before use.
  • Pregnant and breastfeeding women should consult a healthcare professional before taking inositol supplements, though it is sometimes used under supervision in fertility and pregnancy support.

Always consult your health practitioner before taking nutritional supplements, especially if you are taking medication or are under medical supervision. You should not take supplements as a substitute for a varied balanced diet or healthy lifestyle.

FAQs

What is the main benefit of inositol?

It supports normal psychological function, metabolic health, and cell communication, with particular research around mood balance and reproductive health.

Is inositol the same as vitamin B8?

Inositol is sometimes called vitamin B8, but it is not an official vitamin because the body can produce it naturally from glucose.

Can inositol support women’s health?

Yes, inositol is studied for its role in ovarian function, fertility, and hormone balance, particularly in relation to insulin sensitivity.


References

1. https://pmc.ncbi.nlm.nih.gov/articles/PMC10926319/ 
Myo-inositol in reproductive health and insulin sensitivity

2. https://pmc.ncbi.nlm.nih.gov/articles/PMC9955821/ 
Review of inositol and its role in psychiatric and neurological health

3. https://pmc.ncbi.nlm.nih.gov/articles/PMC7554709/ 
Uses of Inositols relating to neurodegenerative diseases

 

Our products that contain Inositol

Where next?

Information on this page is for educational purposes only and is not a substitute for personalised medical advice. Always consult a healthcare professional before making dietary changes or starting new supplements.