Zero Calorie Diet

Zero Calorie Diet food are food that requires more calories to burn than it adds. For example, a slice of chocolate cake has 400 calories. Your body needs about 150 calories to digest this, leaving 250 calories that add to your body fat. Now, let's take a zero calorie food like a stick of celery that has only about 5 calories. Since you need 150 calories just to digest it, this means you're burning 145 calories just to eat it.

So, what kind of food has zero calories? In general, this means food that needs a lot of chewing. Some zero calorie foodsare:
Cucumber, celery, tomato, lettuce, asparagus, garlic, spinach, zucchini, lemon, grapefruit, cabbage, gourd, turnip, papaya and pineapple.

Go Veg
Meat and eggs don't fall under zero calorie foods, so its best to have as little of them as possible, or add vegetables to them. (Look at the last tip to see how you can do this).

Go Green
Go in for fruits and veggies that are high on moisture and fiber. The extra bulk from fiber and the water content is proven to keep you full for longer, so that you can keep away those cravings and lose weight faster.

Chew!
Chewing, digesting and metabolizing burns calories, so munch on a whole celery stick rather than celery soup, and eat whole fruit rather than juicing them. This is a healthier snacking option than chips or cookies too.

Eat raw...
As far as possible, have these foods raw. The vitamins in raw fruits and vegetables stimulate tissues to produce enzymes that help break down calories
...Or Cheat A Little
If you just can't live without cooked food or meat, make a few changes.
1. Add lots of fresh lettuce and tomato to your chicken salad sandwich.
2. Make a filling stew with meat and plenty of vegetables
3. Add veggies to your omelets and turn them into hearty Spanish omelets.
4. Start with fresh fruit and salad before you move onto the main course.
5. Opt for fruit in your dessert - try a light and tasty fruit tart instead of a heavy chocolate mousse.