Ted Haggard, president of the National Association of Evangelicals, told Barbara Walters on her “Heaven” show that in heaven we’ll be able to eat every kind of food in any quantity without getting fat. Was this a plug for his new book? “The Jerusalem Diet,” a regimen for losing weight that has to do with fat-eating days and fruit-and-nut days, is something of a departure for Haggard, whose previous writings are in the vein of “Simple Prayers for a Powerful Life,” and “The Life Giving Church.” The Random House web page for the book, however, describes Haggard as “a busy pastor who loves food and admits to a lack of self-control when it comes to eating.” This raises the sickly question of whether Haggard’s preaching on heaven was colored by his own food issues, but first, Rev. Ted, will heaven stock that peanut-encrusted toffee that’s been popping up around my office this Christmas season? Cuz if it doesn’t I’m not sure I want to go…