1. Walking is not as effective as running.
You will be more likely to burn about twice as many calories running for 30 minutes, versus walking for 30 minutes. We should be focusing on the distance covered during a workout rather than the time taken to complete the workout. Hence, if one is willing to take a walk that takes 30 minutes to cover via running, the walk would be an effective outwork too.

2. Exercise increases hunger
It’s a common misconception: If you burn hundreds of calories during a workout, you’ll end up eating more. But research shows that exercise has no effect on a person’s food needs, with the exception of endurance athletes who exercise for two hours a day or more. In fact, research shows that exercise often suppresses hunger during and after the workout.

3. It doesn’t matter where your calories come from
Calories are not created equal. First, some foods (in particular, proteins) take more energy to chew, digest, metabolize, and store than others. Others (such as fats and carbohydrates) require fewer calories to digest and store. Second, different food types have different effects on your blood sugar. Refined carbohydrates (think white bread, cookies, and fruit drinks) raise blood sugar levels dramatically, which encourages fat storage, weight gain, and hunger. Fibrous foods like apples, as well as proteins, raise blood sugar less, making them friendlier to your waistline. Finally, foods that contain a lot of water, such as vegetables and soup, tend to fill the belly on fewer calories, so you’ll stop eating them way before you stop eating more calorie-dense foods.

4. Diet alone is enough for sustained weight loss
You’ll lose weight in the short term by slashing calories, but experts say exercise is what keeps pounds off for good. Exercise burns calories, of course. It also builds muscle, which takes up less space than fat. Muscle tissue also requires more calories to sustain it than fat tissue does. In other words, the more muscle tissue you have, the more calories you’ll burn at rest. In fact, some studies suggest that over the long term, if you had a choice of eating consistently less or exercising consistently more, exercise would be the better weight-loss choice. The best option is definitely to combine both exercise and diet.

5. There is no best time for exercise
If you’re simply walking to get healthy or take off some weight, it doesn’t matter when you do it, as long as you do it. Remember, any exercise is always better than no exercise. The harder you push yourself during a workout,the more calories you will burn.