All overweight people overeat, ALL of them!
"The National Association to Advance Fat Acceptance (NAAFA) has been holding
its annual convention in the San Francisco Bay Area. Normally, we wouldn't
write about the NAAFA, because, frankly, it's not our market. The NAAFA
believes that loosing weight is inevitably a yo-yo process, and that yo-yo
dieting is more damaging to your health than obesity. As a company devoted
to supplying tools, information, and support to people trying to slim down,
we have nothing to offer people who have given up on ever losing weight.
But we did want to comment on the following statement attributed by the San
Francisco Chronicle to 48-year-old convention attendee Ruth Ann Thomas on
the relationship of obesity and genetics: "There are a number of people who
are fat who don't overeat. You would be amazed about how much I don't eat.
Is it really possible that there are people who, due to genetics, are obese
but do not and have never overeaten? We don't think so. Our definition of
"to overeat" is to eat more fuel/energy/food, as measured in calories, than
your body expends, as measured in calories. We think that Ms. Thomas is
obese because, in the past, she overate in this sense. (If her body weight
is currently stable, she is still overeating in the extended sense of eating
more than her body would expend at her healthy weight.)
How might genetics play a role in obesity? Genetics might create a
compulsion to overeating. Genetics might make you more prone to depression,
which is associated with overeating and a sedentary lifestyle. And finally,
genetics might make your body's metabolism somewhat more efficient, using
fewer calories to get through the day, lowering the number of calories you
can eat before you "overeat."
The latter possibility above is what people like Ms. Thomas seem to latch
onto: the idea that their genetic makeup makes their bodies super-efficient,
able to subsist on barely any food intake, so that even eating like a bird
puts on the pounds. Individual metabolisms vary, and there are rare diseases
that affect metabolism, but the variance is not as much as some claim. A
typical woman uses 11 calories per pound per day just to lay around watching
TV; a man uses about 12. But this can vary, and the rare woman may only
require 10 calories per pound. But we don't know of any reports of women who
can get by on only 5 calories or 1 calorie per pound; this would be like a
claim to have invented a perpetual motion machine (pictured). At some point
the basic laws of thermodynamics come into play."
http://calorielab.com/news/2005/08/1...-dont-overeat/
NAAFAer like Robin says fat people don't overeat 
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