Does Working out Without Dieting Work?

The short answer: No. As good as exercise is for you, it won't help much without dietary modifications if you're trying to lose weight and fend off heart disease, diabetes and other ailments, dietitians and researchers say.

Can you lose weight by exercising and not dieting?

Exercise while ignoring your diet just isn't a good weight loss strategy, says exercise physiologist Katie Lawton, MEd. “To lose weight, you need to burn more calories than you consume or eat fewer calories than your body uses each day,” says Lawton. “If you don't have a caloric deficit, you will not lose weight.”

Can you lose weight without dieting?

And many experts say you can do that without going on a "diet." Instead, the key is making simple tweaks to your lifestyle. One pound of fat -- is equal to 3,500 calories. By shaving 500 calories a day through dietary and exercise modifications, you can lose about a pound a week.