Jamie Oliver is opening up about his own health battles ahead of launching a new campaign, this time focusing on books instead of meals. The famed chef and childhood nutrition champion, who transformed school dining in the 2000s, is making a foray back into schools as part of a forthcoming Channel 4 documentary - but he's staying away from the lunch queues. Instead, Oliver is aiming to help kids grappling with dyslexia, a challenge he knows all too well from his own academic and adult struggles.