I don't what section of the book it's in, but I
can tell you this.
Atkins is a HIGH-fat diet. During induction, our bodies enter a state called ketosis. This occurs about 48 hours after you start--it takes about that long for our bodies to use up the available glucose/carbs stored in our bodies. After that, our bodies automatically switch to burning FAT instead of GLUCOSE.
This is why atkins is high-fat--
fat becomes our primary source of fuel, and if you're doing induction correctly, your daily calories should come out to 65% being from fat, 5% from carbs, and 30% from protein. If you do low-fat AND low-carb, what are you using for energy? The obvious choice would be protein, BUT if the body has an excess of protein, the protein converts to glucose, which ultimately converts to fat in our bodies.
Fat is not bad for you! Healthy natural fats, such as olive oil, fats found in fish, avocados and nuts and seeds are on MANY other eating plans besides atkins (like Mediterranean and South Beach). It is the refined sugars and carbs that are killing us.
Hope this helps! I know there will be others to help answer your question, probably tomorrow--Saturday is a slow day around here.