Just an FYI for shrimp lovers: that dark vein in your shrimp is actually poop.

Well, more specifically, the digestive tract. Now that you know THAT, you may be wondering: “Is this OK to eat?” While you COULD devein the shrimp, it isn’t necessary.

“Eating the shrimp’s digestive tract doesn’t make you sick—as long as you cook it thoroughly,” Dr. Dave Love of Johns Hopkins Center for a Livable Future told SELF.