What are the best way for a teen to burn fat fast?

Balanced diet: A healthy diet with balanced nutrition is the best choice. Use low fat milk (skim or 1% is best), low fat meats and cheeses, lots of fresh vegetables, fruits, and whole grains. Get at least 1 hour per day at least 3-4 days per week of active exercise. A fast weight loss frequently results in a fast wt. Gain. Losing wt slowly and steadily is more likely to be permanent.