To be frank "who cares?"! As long as over time the number on the scale in the morning goes down, does it really matter what it says throughout the day? Obviously the weight during the day includes food, digested food that hasn't been..um..deleted yet, water or who knows and who cares what. As long as generally you're weight goes down, you should not worry about it. In fact, most people's weight fluctuates on a daily basis by 1 to 3 pounds and that's natural too.