Negative Calorie Balance
Negative calorie balance can be achieved through:
1) reducing calorie intake while keeping calorie expenditure (physical work or exercise, maintaining the body warmth, etc.)
2) increasing energy expenditure while keeping calorie intake constant
3) combining both - this is proved to be the most efficient way.
The diet works by completely different mechanisms based on so called calorie density of foods. The less dense in calories a food the more satiating it is because our body is designed to feel full first of all depending on food volume. so the more calories in a cup of food, the more calorie we'll consume.
The foods in the Negative Calorie diet are very low calorie density, mostly vegetarian, low fat foods.