Who would? Well, me for one. Does this mean that in 3 weeks, she'll be back to eating burgers, wine and oreos? Bah............With summer just around the corner, Oprah Winfrey is saying bye, bye to burgers – hello tofu and tempeh! The talk show host, 54, is going vegan for a 21-day detox plan. In addition to swearing off animal products, Winfrey and three pals from her production company are also banning caffeine, sugar, gluten and alcohol.