If someone who has had gastric bypass surgery only eats 500 calories a day and doesn't starve...read on please

Question

...then why would a overweight person (50 pounds, say) starve? *knows this is incredibly stupid and dangerous, but I've always wondered*

Answer 1

But they do starve, this is an absolutely last resort to lose weight. The problem is that along with all the fat loss, they lose a tonne of muscle, which is not healthy. If someone can lose the weight by changing their lifestyle this is a much better option to gastric bypass surgery.

HTH : )

Answer 2

Depending on the operative procedure, with gastric bypass surgery, the receptors responsible for making you feel full aren't there any more.