As a child, food was one of the few constants in Perdue’s life. “My mother wasn’t able to raise me fully,” Perdue, 34, tells PEOPLE in the 2018 Half Their Size issue. “I always associated food with happiness. I thought, ‘Food is not going to. A hyperactive former Eagle Scout, Allen will have been up for hours, if he ever went to bed. Whether or not he did is one…