Earlier quoted context omitted.
Not when you are morbidly obese like the author was. When you are that big( pushing 300lbs) it's not uncommon to loose 5lbs a week at the start.
Why is the weight loss mechanism different under those circumstances?
http://forum.bodybuilding.com/showthread.php?t=121373121&pag...
Higher Metabolism, more water weight to shed.