Descriptions: The major factor that makes us to put on much weight by the day is our consumption of refined carbs, especially sugar, high-fructose corn syrup, and flour. The summary of the theory is that when you drastically cut back on carbs, your body turns to your fat stores for fuel. The result is you burn body fat, releasing a by-product which is called ketones, that you will use for energy. The thrust of the Atkins Nutritional Approach is to reduce one's carbohydrate (carbs) intake and increase once intake of protein and fat.