Kids whose parents are demanding but not emotionally responsive are about one-third more likely to be obese than kids whose parents set healthy boundaries, are affectionate and discuss behavior. Researchers compared kids whose parents are generally affectionate, have reasonable discussions about behavior with their child and set healthy boundaries (authoritative) with those whose parents were strict about limits without much dialogue or affection (authoritarian).

Source: Ruling with an iron fist could make your child pack on pounds