For more than a decade, the British chef Jamie Oliver has been world famous for his global empire of restaurants and campaigns against junk food. But while he remains committed to using his platform to promote healthy eating, his name doesn’t appear to hold the same branding power as it once did. A few weeks ago, the celebrity chef announced that 22 of his 25 U.K. eateries would close after the Jamie Oliver Restaurant Group filed for bankruptcy protection. Although Continue reading