My brain made me eat it, and my gut did not help
The brain drives eating, but the gut has a mind of its own
Decisions about what, when and how much to eat are made by the brain, though these choices can be strongly influenced by the hedonic and rewarding properties of sweet or fatty foods. The rumbling before and the fullness after eating tells us that the gut also has an important role in the initiation and termination of feeding. Gut-derived peptides continually convey homeostatic information to the brain to guide feeding. These circulating signals can also modify the pleasure and reward associated with food.
Journal of Neuroendocrinology 24/9 (2012) PMID 22897412