An important component of phospholipids, inositol can assist in regulating cellular response for healthy body functioning. Present in all animal tissues, especially at higher concentrations in the brain and heart; plays a role in the liver effectively processing fats, as well as the function of muscles and nerves. Known to boost serotonin production in the brain, helping to combat depression and mood-related disorders. Helps to lower cholesterol levels; inositol combines with choline to product lecithin, which is essential for fat breakdown within veins, capillaries, and arteries.