sentences:  In response to the accusations, Seinfeld denied that either author had invented the idea of hiding fruits and vegetables in children's meals, and asserted that "countless prior works utilized this very same unprotectable idea" in cookbooks dating back to 1971.She claimed, "My book came from years of trying to get my own children to eat healthy foods—my own trial and error in my own kitchen.The idea of pureeing vegetables has been around for decades."