Full disclosure: I’m a Jamie Oliver fan. I cook from his books. I’ve eaten at his dad’s pub, The Cricketers, in Clavering, Essex, where he started cooking. I’ve long applauded his efforts to reform school food in England. Having had a close-up look at what’s served at my daughter’s school (she now mostly brown bags it), I was thrilled when he brought his campaign here. Do we need a Brit to tell us how to eat? One could argue that we do not, but his voice adds volume and momentum to the efforts of Alice Waters, Ann Cooper, Whole Foods, Slow Food USA and others worried enough about kids’ nutrition to instigate change. Oliver’s series began in March; I started working through the DVR’d episodes tonight. (Full episodes can also be downloaded.) He’s at once enthusiastic, emotional, wacky and absolutely serious. If you like what he’s got to say, be sure to sign the petition on his web site. Who knows what it might start?