Stop eating junk food

Have you ever watched the series in TLC Honey I am killing our kids? It is quite interesting to watch the whole family trying to live a better life by not eating junk food and exersing. I think the hardest part is for the parents to convince their kids that the junk food that they see in stores and advertised in TV is not for you. The future pictures of the kids after 20 or some years are so scary.