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SUGGESTED USAGE: As a dietary supplement, take 1 lozenge daily. Chew lozenge or hold in mouth until dissolved and swallow. Take higher amounts on the advice of your healthcare practitioner. HOW IT WORKS:Vitamin B12 has the largest and most complex chemical structure of all the vitamins. Most of its functions are related to its co-enzyme activity, such as enzymes needed for the production of DNA during cell division.* It is required for the synthesis of the amino acid methionine, from homocysteine, which helps to maintain already healthy serum homocysteine levels.* B12 is also necessary for the maintenance of a healthy nervous system.*