James Warren wrote:
Doug Freyburger wrote:
James Warren wrote:
Walter Bushell wrote:
James wrote:

abhor low carb prior to the surgery and mandate it afterwards. Perhaps
bariatric surgery "works" by enforcing a low carb diet.

The way I understand it bariatric surgery works by causing drastic
changes in several hormone levels like ghrelin, PYY and GLP-1.

Which is a cause and which is the effect? It is certain that bariatric
surgery makes total adherence to low carb mandatory.

Why? I hadn't heard that at all.

The change in hormones is immediate presumably because most of the
stomach is bypassed and is not stimulated by eating.

The not eating part is caused by the band. It can as easily be caused
by doing the fat fast. That should trigger the same metabolic changes.

What if those same
people had tried total adherence to low carb before surgery?

I know we can't know that. It's like saying everyone in a concentration
camp loses weight. It's true but it's not relevant to dieting.

There should be suspicions though. The diet shortly after bariatric
surgery, doesn't it remind you of the test cases in the original fat
fast experiment?

Again, what diet change is mandated by the surgery? Surgery is much
more drastic an intervention than diet change.

Before surgery there is no pain when eating. After surgery if you eat
more than a certain amount there is severe pain and vomitting. Much
worse pain than the hunger.

People on the fat fast report little hunger. Same as folks who have had
surgery. One is voluntary the other forced.