Not necessarily. Many cases have proved that even if parents are severely obese, as long as children always adhere to a healthy diet and exercise, they can break the routine of genetic obesity genes and grow into a normal-weight child. Therefore, parents lead by example, children will follow their parents' healthy diet and exercise habits, limit their children to drink sugary drinks and eat less desserts; Eat more nutritious food; Shorten the time of watching TV, go to bed early and get up early, and have a balanced diet to avoid the occurrence of children's obesity.