It is easy to maintain keep weight off and maintain a slim boy.
First, stay away from fast food because there are plenty of fat and useless carbohydrate.
Then it is important to have healthy food in every meal. That means we should always have vegetable and fat-free food.
Third, working out is also important.
Exercise should be done three days per week, and at least 30 minutes per exercise.
Next, drink enough water everyday.
People in general condition should drink fresh water eight glasses a day.
Finally, stay away from stress and always be happy.
These are the secret that keeps me always fit and firm.