Vitality, formerly Enada NADH, the original patented stabilized formula – we have discontinued the Vitality box in preference to the original Enada box. Co-E1 Vitality is an enteric coated 5mg tablet of NADH. Co-E1 distributes Vitality 5mg and Vitality Plus 5mg. Vitality 5mg helps to provide sustainable energy. It is most effective when taken on an empty stomach; that is, first thing in the morning or at least an hour before eating or two hours after.