Diet vs. exercise: Which weight loss option is more effective by itself?

Our fitness expert Phil Clark compares the effectiveness of dieting alone vs. working out without major dieting changes.

If running isn't for you, fitness expert Phil Clark has a workout hack that could help you burn calories just by walking.

More weekly tip videos:

• How to burn as many calories walking as running
• Choosing the right ab workouts
• Core exercises that help strengthen the lower body
• Exercises to strengthen the leg after an ACL injury
• Effects of ACL injuries and treatment