Cara Delevingne ''lives on'' a diet of vegan chocolate as opposed to a diet of water and cigarettes that some of the other pin thin models seem to prefer to stay in runway shape. The 22-year-old supermodel reportedly can't get enough of the snack and even carries it around in little pouches in her pockets so she can get her fix at a moment's … [Read more...] about Cara Delevingne lives on vegan chocolate, as opposed to water and cigarette diet of other models