I stopped taking my supplements, stopped working out, and starting eating carbs again. He was able to tell I gained weight without seeing me or my weight, and just looking at some basic blood numbers.
I was going in anyway for a regular visit, but the nurse says he wants my body mass. No, they don't do it the old fashioned way - you stand on a device and hold handles. A small electrical charge runs through the handles and they measure the resistance or something or other to come up with a number. Very scientific, and probably easier to charge for. :) Visit is set for the 20th of June. Goal is to be down 12 pounds when I walk in there.