Depending on a body's metabolism, 40 pounds in two months on strict Atkins is possible for some people. Like my husband (the dog)
But don't beat yourself up if you find it's going a little slower. Now that I'm older and quite content with my life, I see so clearly that losing weight and maintaining it is not a race. If you find an enjoyable and healthy way of eating, it's more important to stick with your lifestyle and let your body throw away excess weight on its own timetable than it is to get the scale down fast. I wish I had an exact log of my weight loss as my memory is not what it used to be. When I first cut out bread and sugar, I believe I lost about 25 pounds in the first two months. I've maintained that loss and have lost more (albeit much more slooooooowly) over these last two years.
I've made a habit of typically not eating after 6 pm for most of my adult life. The biggest difference between me now and before I was cognizant of the effect sugar and wheat have on me is that these days I'm not a crazed animal when I get hungry. Most times I don't eat breakfast until after I've exercised which is normally somewhere around 10 or 11 am. So even though I don't know much, if anything, about intermittent fasting, I suspect IF is an easy addition if you're following Atkins.
Good luck Brocker81! I find that once I'm past that low carb flu that staying on plan is a piece of cake, or should I say a slice of beef?