I know it is never recommended that you drink energy drinks because of the rather unnatural ammount of sugar in them. However, I have just read the information on the back of 'Kick' (Tesco's answer to 'Red Bull') and it claims to contain 125% RDA B2 and 300% RDA B12 per 100ml serving. I can't help but wonder about B12 analogues and the like, but maybe a small amount of this stuff in the morning could be good to add to a Vegan diet? :)