a study from researchers led by HHMI identifies a population of neurons in the vagus nerve and brain stem activated by sugar when it enters the gut, independent of the tongue's taste receptors. The team states this specialized gut-brain circuit is not activated by sweeteners, possibly explaining why some sugar substitutes never seem to be able to satisfy sugar cravings.

Researchers discover & map a new gut-to-brain sugar pathway.

The sugar epidemic in America has reached deadly proportions with the average person’s intake of this substance now averaging more than 100 pounds annually. Sugar addiction has been linked to obesity-related conditions such as diabetes, affecting more than 500 million people globally. Sugar and artificial sweeteners are known to trigger specialized taste buds on the tongue to activate pathways in the brain, implicated in sugar … Continue reading Researchers discover & map a new gut-to-brain sugar pathway.