B-100 Tabs provide a full complement of B-Vitamins plus Choline and Inositol. Together, these vitamins work to support energy production, are critical for the healthy metabolism of homocysteine, and promote a healthy nervous system. B-Vitamins are water soluble, and with the exception of B-12, they are not stored in the body and thus require daily replenishment. Because dietary sources of B-12 are of animal origin only (meat and dairy), supplementation may be especially important for vegetarians.*