Food Poisoning
You must help them realize that being overweight doesn't inevitably lead to a lifetime of having low self-esteem. Your acceptance of their condition is critical. Try to listen to your teen's concerns. Provide positive comment on his or her efforts, skills and accomplishments. You must always make it clear that your love and concern is unconditional and that it is not dependent on weight loss.
This will make them more secure as well as confident in trying to motivate himself or herself from losing weight. You can help your teen learn healthy ways of being more open in express his or her feelings.