It can be eaten raw but it is bad for you and it will taste disgusting.I like it dipped in ranch dressing. And it's not bad for you. It's quite healthy. Just make sure you wash it well.
There are tons of foods you can eat raw (example: fruits, veggies, fish). But some foods will make you sick if you eat them raw, because of bacterias (from a little vomit-sick to hospital-sick),...