Why do we feel hungrier after too much greasy food?
Splurging on greasy, fatty foods can rev your appetite for days afterwards, according to recent research in the Journal of
The findings—which may explain why you feel extra hungry after a weekend of eating pizza, burgers and cheesy fries—hearkens
back to a time when our ancestors had to feast on fatty foods, such as meat, whenever it became available because they didn’t
know when the next successful hunt would come.
In the study, researchers gave two types of fat to mice (in addition to their regular diets). One was palmitic acid, a
saturated fat found in beef, butter, cheese and palm oil. The other, oleic acid, is a healthier fat common in olive oil,
fish, nuts and soybeans. After three days of palmitic acid, mouse brains became resistant to the appetite-suppressing
hormones leptin and insulin.
Other work in humans suggests that the same holds true for people, says lead author Deborah Clegg, Ph.D., R.D., at the
University of Texas Southwest Medical Center in Dallas. Her recommendations:
Do your best to resume a healthy diet after a weekend binge.
Start meals with salads instead of bread.
Replace alcoholic beverages with water.
And eat more slowly by putting your fork down between bites: it normally takes about 20 minutes for
your body to register fullness.