A new study says the feelings you have when quitting junk food are similar to the ones experienced in drug withdrawal.

Researchers out of the University of Montreal say a high-fat diet can actually cause chemical changes in the brain.

And those changes could lead to stress and withdrawal symptoms if you switch to a healthier diet.

The study, published in the  International Journal of Obesity, was performed on mice for a period of six weeks.

The author says the chemicals monitored in the mice are similar to those found in the human brain.