SD2 and the Science Behind it

Since Sd2 works on a ketogenic System..or rather a ketogenic diet..its essential taht we know its facts. So here it is:

• What is Ketosis?

Simply stated Ketosis is a measurement of fats burning. Burned fat is broken down into Ketones, which the body uses for energy. When you burn a larger amount of fat than is needed for energy, the left over Ketones are excreted through the urine. Ketones can be measured by checking your urine with a Ketone stick. A pink to purple color indicates that you are in Ketosis. In addition to losing fat more rapidly, most people report feeling less hungry and more energetic while in Ketosis. Because the body burns fat stores, after it burns available carbohydrates, the Lean for Life weight loss plan is designed to help you achieve Ketosis by limiting your daily total carbohydrate intake as well as limiting total calories. Most adults achieve Ketosis when their daily carbohydrate intake is somewhere in the range of 50-100 grams. Dietary Ketosis itself is not dangerous to a normal, healthy person. 

In a state of Ketosis I understand that the Ketones are a measurement of "fat burning" and that the natural course of action is for the body to first burn Carbohydrates and then Protein. My question is when does the "fat" portion of your diet get burned up, before or after the Protein and Carbohydrate?

• When we haven't been on a diet we will have a storage of 1, 2 or 3 days of glycogen in our livers. This is a source of carbohydrates to burn very rapidly. Once we don't have enough calories in our body we start using that glycogen or carbohydrates that are just stored in our livers for this extreme situation, it will start burning that down. Once that's gone or depleted after about 2 or 3 days then our bodies will use anything it can to form sugars from our body for it's fuel. It will then start taking it from our protein mass and our fat mass. At that time it will take more from our fat mass that our protein mass if we are having adequate amounts of protein in our diet. So fat gets burned after you spend two or three days of depleting the carbohydrates that are stored in the liver just for the purpose of not eating enough food. 
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• Does the diet completely avoid carbs? Can't I eat pasta or baked potatoes during the 6 week weight loss period? This diet doesn't completely avoid carbs. You're probably going to have 50 to 100 grams of carbs because every time you have food there are some carbohydrates in them. Pasta and baked potatoes have a higher glycemic index, which means they increase your blood sugar more rapidly, so we try to avoid them during weight loss. In maintenance, you can add them back in.