Originally Posted by armageddon
You could lose 10 lbs of water weight by nearly dehydrating yourself too. Nobody said it was 16 lbs of fat.
For human over 300lbs losing 20lbs in a month is not that hard. Just sitting around and not working out a person has to intake 4000 calories a day to maintain body weight. Cut that down to a normal intake and it's not hard to lose wieght.