If you’ve ever heard the burger you’ve just bitten into say “eat me”, you may not be just hearing voices. A new study shows that the fats found in foods such as burgers and ice-cream can actually control your brain.
Conducted at the UT Southwestern Medical Center at Dallas, the study found that once ingested, fat molecules in these foods head straight to the brain where they prompt the brain to send out signals to the rest of your body to ignore appetite-suppressing signals. Scientist Deborah Clegg says that usually these signals (from leptin and insulin) tell you when you’ve had enough to eat.
“Our findings suggest that when you eat something high in fat, your brain gets ‘hit’ with the fatty acids, and you become resistant to insulin and leptin,” says Clegg. “Since you’re not being told by the brain to stop eating, you overeat.”
Researchers have even gone so far as to identify the specific type of fat responsible for this resistance – palmitic acid (found in beef, butter, cheese and milk).
Although the tests were only conducted on rats and mice, the scientists say that their study, which was published in The Journal of Clinical Investigation, simply reinforces current nutritional recommendations that individuals reduce the amount of saturated fat they ingest because it results in overeating.
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