The only way to lose weight is by burning more calories than you consume. You can accomplish this by either eating less or exercising more.
Healthy weight loss is up to two pounds per week. If you're aiming for more, you could be putting your health in danger.
To lose two pounds in a week, you need to create a deficit of 1,000 calories per day. If you eat 2,000 calories, you'll need to burn 3,000 calories to lose weight quickly.
To speed things up, make sure that you combine a calorie restricted diet with a good exercise routine. Stick to this plan and you'll be losing weight in no time.