"There are many reasons other than burgers, shakes and snicker bars that people are over weight."
Excatly right! There are also potato chips, pizza, ice cream, and the MOST reliable of all, not having exercised once since you graduated high school and finally escaped phys ed.
Actually, in the absence of some pathological condition (such as a forty pound tumor) there is only ONE reason that people get obese: A total lack of self-discipline.
Right on, sister!