The popular Negative Calorie Diet is in fact a low-fat, low-energy-density diet. What is offered by vast varieties of low carb diets, is just the opposite - high-fat, high-energy-density diets. But if we stop to think in terms of negative calorie
balance, we'll see that any diet can do. Another thing is what's called "fat burning effect" of foods. From this standpoint, low-carb, high-fat foods are indeed able to make the body burn its own fat for fuel, the effect that low fat diets cant achieve.
The matter is, our metabolic mode is directly affected by the ratio carbs+protein to fat. If there's at least 1.5 tiles more fat in a food or meal than there's carbs+protein combined, the body's metabolic mode shifts into the fat burning mode. The higher the ratio in favor of fat grams, the deeper into the fat burning mode our body is. This condition is called ketosis and low carb foods and meals are what causes ketosis.
Here's a
sample list of foods that can be eaten without portion control and still cause ketosis.
"Free" foods - eat all you want. The higher on the list the better.
Butter
Heavy cream
Cream cheese
Sour cream
Sesame seeds
Bologna
Pecans
Frankfurter
Knockwurst
Coconut
Combining foods that with low ketogenic capacities and those with high, you can have just about any food and still get into the ketosis state. For example, 2 leaves of Romaine lettuce plus 2 tablespoons of sour cream or 1/3 cup of Chinese cabbage plus 1 tablespoon of oil are negative calorie" meals though the lettuce or cabbage alone are not.
