Vitamin B8 (Inositol)

Vitamin-B8Vitamin B8 (Inositol)

Inositol is a vital for health, yet it has been touted as a vitamin that you “Don’t Need” by conventional medicine.

Inositol is part of the “B” family, and is water-soluble. As with choline, it is a precursor of phospholipids, which are a necessary component of cell membranes. This is important, because phospholipids are vital for the electrical current, as well as, nutrient transport across, and in, the cells.


Why do you need Vitamin B8 (Inositol)?

Inositol plays a vital role in the human body such as:

  • Prevention of fatty build-up in the liver
  • Prevention of fatty build-up in the heart
  • Promotes healthy hair growth
  • Aids in nutrient metabolism into energy
  • Essential nutrient for the brain
  • Vital of nerve transmissions

Inositol and choline, though quite different chemically, seem to work synergistically. This is because they both are essential components of phospholipids, which are the most important lipids (fats) in plants and animals.

Together, inositol and choline make what’s known as lecithin. Because lecithin assists the absorption of Vitamin B1 (thiamin) and Vitamin A, then indirectly the need for inositol and choline are crucial.

It has also been observed that inositol increases the effectiveness of Vitamin E as an anti-oxidant.


Conditions Related to Inositol Deficiency

  • Anxiety
  • Depression
  • Impotence
  • Obsessive-compulsive disorder
  • Panic disorder
  • Lung cancer
  • Polycystic ovary syndrome
  • May help memory with Alzheimer’s disease
  • Eczema
  • Psoriasis
  • Baldness



When using inositol, it is best to increase dosages slowly, and to take along with choline and other B Vitamins. Typical dosages range from 100 mg – 1000 mg with therapeutic dosages ranging from 10 – 20 grams.

For depression: The dosage that has worked for many of my patients is 1000 mg – 3000 mg 1-2/day. I prefer powdered inositol, which makes taking it very simple; just mix in a glass of  purified or filtered  water. This can be taken with or without food, though I recommend on an empty stomach.



Inositol is water-soluble, so any excess of this vitamin will be washed out. High dose inositol is very well tolerated when dosages are slowly increased. As with any therapeutic dosages, minor side effects such as diarrhea may occur at first, and then later subside.


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