To keep away junk food away from you need to do some behavioral changes like-
# Introduce your child healthy foods like fruits, milk etc. when he starts to eat.
# Never give him junk food as a reward for the good things he achieved.
# Your child needs to know and understand the effect of junk foods to his body. A visible food chart can definitely help a lot. It is better if you will put it in his room and near his bed.
# If you are outside and celebrating a certain occasion, look for a healthy restaurant.
# Parents should discourage birthday treats to be given at junk food restaurants.
# Do not feel bad about not allowing your child such foods every other day. You are doing the right thing.
# You probably can't control every last morsel that goes into your kid's mouth. But you can pack their lunch and supervise them at every turn.
# Create healthy fun-food alternatives for your child at home. Healthy foods need not be boring to eat. Use your artistic instinct.
# Get your child to be active, it is as important as eating and sleeping. Encourage him to participate in any physical activity which can be sports, dance etc.
# But of course, if you want your kids to eat healthy foods, you have to model that behavior for them by choosing healthy foods yourself.
These tips will help your child for getting good health and good future as well