When it comes to losing weight, boredom could be your best friend. At least, that’s the take-home message from a new study that looked at how a boring menu affects appetite. 

Researchers from the University of Buffalo in New York split volunteers into two groups. The first group met every day for 5 days and the second met once a week for 5 weeks. And each time the groups met, they were offered a tasty mac-and-cheese dinner. 

The result: The people who ate mac-and-cheese once a week consumed 30 more calories each time they sat down, because they looked forward to their meal. On the flip side, the every night mac-and-cheesers ate 100 fewer calories a day, because of a mental process called habituation. To put it simply: The more we see – or taste – something, the less we enjoy it.

Of course, this doesn’t mean you should eat the same thing every night for the rest of your life.

Shelly McGuire is a spokeswoman for the American Society for Nutrition. And she says that variety is good for dieters IF they eat healthy foods. In other words, you won’t get fat eating a lot of different fruits and vegetables.