Hunger comes in many forms. A person can crave a perfect steak in the same way that she can crave a perfect family life. In Crave, Christine O’Brien tells the story of how her mother, forty years before the demand for raw juices and smoothies spawned a trendy mini-industry, put the family on the Program, a blended vegetable regime to which she demanded total adherence. Her mission: the purification of her children’s bodies, minds and souls. Hunger became the most constant thing in their lives.