Diet+exercise program is the healthiest way to lose weight, and it is also the fastest and not easy to rebound.
First of all, pay attention to your diet! Don't eat those high-calorie and high-energy foods, such as fried chicken, French fries and so on! Eat more vegetables, protein food!
Then you must have a certain exercise plan, such as running for 3~5 kilometers in the morning! There will be some jumping exercises in the afternoon! Take a digestion jog for 30 minutes after dinner in the evening!
The most important thing is perseverance and endurance.
Hang in there until you see a rainbow!
I wish you an early success in losing weight!
I hope this answer can help you!