By conservation of mass the only way she can gain weight is to intake something...food or water. I don't know that this 20 gram gain is any indication of an event taking place, other than drinking water or your scale being off on one day or another. Sorry

I had a friend who thought he would gain weight WHILE he was lifting...as if the muscle was appearing out of thin air. Lol.

Tomorrow I'm waking up at 190 pounds, 5% body fat. *Crosses fingers*

JonV