Studies like these are way too simplistic to conclude anything regarding obesity, in my opinion. An increase in ghrelin levels was measured, but what about all

Studies like these are way too simplistic to conclude anything regarding obesity, in my opinion. An increase in ghrelin levels was measured, but what about all other other hormone levels that were possibly affected as well? The body is a complex system of thousands of equilibria; if an increase in e.g. testosterone levels (which makes the body burn off fat) was also an effect, this may well offset the effect of increased food consumption -- or even overpower it, causing a weight decline as opposed to a gain.