Anyone who loves Oreos knows how addictive they can be.

But now, they might actually be addicting.

According to a study from Connecticut College, “Oreos are as addictive as cocaine, at least for lab rats,” TIME reports.

The study showed that “eating the iconic black and white cookies activated more neurons in the rat brain’s “pleasure center” than drugs such as cocaine.”

But that’s not all.

The rats were then placed in a maze and given a choice to hang out near rice cakes or Oreos. The Oreos won. (Not a tough choice, though, to be fair).

But finally, the rats were placed in a maze where they could get injected with saline in one corner and morphine or cocaine in another. The result?

The rats in the study liked the cookies about as much as they liked the drugs, congregating near the cookie side of the maze as much as they would on the drug side.

They also dove into the cream filling first, before eating the chocolate cookie.

[Source: TIME]