VITAMIN B12 IS FOUND MAINLY IN ANIMAL BASED FOODSTUFFS SUCH AS MEAT WHICH IS WHY IT IS OFTEN CHOSEN AS A REGULAR SUPPLEMENT BY VEGETARIANS AND VEGANS. IT IS ESSENTIAL FOR NORMAL RED BLOOD CELL FORMATION AND CONTRIBUTES TO THE NORMAL FUNCTION OF THE IMMUNE SYSTEM. AND LIKE MOST B VITAMINS IT CONTRIBUTES TO NORMAL ENERGY METABOLISM THE PROCESSES THAT RELEASE ENERGY FROM FOODS. IT IS OFTEN RECOMMENDED AS A SUPPLEMENT FOR THE ELDERLY WHO MAY HAVE A COMPROMISED DIET. THIS IS A HIGH STRENGTH PRODUCT DELIVERING A FULL 1000µG OF VITAMIN B12 PER TABLET. Vegan & Vegetarian