5X Enada NADH, the original patented stabilised formula – we have discontinued the Vitality box in preference to the original 5X Enada box. 5X Vitality is an enteric coated 5mg tablet of NADH. Co-E1 distributes Vitality 5X and Vitality Plus 5X . Vitality 5X 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.