The vagus nerve sends internal sensory information from the gut to the brain about the nutritional value of food. But, the molecular basis of the reward in the brain associated with what we eat has been incompletely understood.

Now, a new study published in Cell Metabolism by a team from the Monell Chemical Senses Center, unravels the internal neural wiring, revealing separate fat and sugar craving pathways, as well as a concerning result: Combining these pathways overly triggers our desire to eat more than usual.

https://www.sciencedirect.com/science/article/pii/S1550413123004667?via%3Dihub (open access)

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[–] Riftinducer@aussie.zone 2 points 9 months ago

No kidding, I remember buying a loaf of rye bread when I went to the US and being shocked that it tasted sweet. It's rye bread, sweetness is not the flavour I was going for.