Inositol & Choline Inositol and choline are B vitamin-like compounds which have similar functions. Both are important components of phospholipids, which make up cellular and other biological membranes, and both play a role in healthy nerve function. Choline is an essential ingredient for the production of acetylcholine, a principal neurotransmitter, while phosphorus-containing compounds of inositol in nerve cells help regulate nerve impulses.* 800 mg Tablet Option Available: 50, 100 Suggested Use: 1 tablet daily. Allergies: Suitable for vegetarians: contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.