Stomach nerves tell you when to eat

Stomach nerves tell you when to eat

Stomach Nerves Tell You When To Eat. 'Tummy Clock’ Tells Us How Much To Eat

Melbourne: The nerves in the stomach act as a circadian clock, limiting food intake to specific times of the day, the first evidence found by scientists. The discovery, by University of Adelaide researchers , could lead to new information about how the gut signals to our brains about when we're full, and when to keep eating.

In the University's Nerve-Gut Research Laboratory, Dr Stephen Kentish investigated how the nerves in the stomach respond to stretch, which occurs as a consequence of food intake, at three-hourly intervals across one day.

"These nerves are responsible for letting the brain know how much food we have eaten and when to stop eating," said Kentish, who is the lead author of the paper.

Kentish found that the nerves in the gut are least sensitive at time periods associated with being awake which means more food can be consumed before we feel full at times of high activity, when more energy is required."

"However, with a change in the day-night cycle to a period associated with sleeping , the nerves in the stomach become more sensitive to stretch, signalling fullness to the brain quicker and thus limiting food intake.

"This variation repeats every 24 hours in a circadian manner, with the nerves acting as a clock to coordinate food intake with energy requirements ," he said. So far this discovery has been made in lab studies, not in humans.

"Our theory is that the same variations in nerve responses exist in human stomachs , with the gut nerves being less sensitive to fullness during the day and more sensitive at night," he said.

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