Kale -- doesn't taste as bad as you might think. No, that's not exactly a great marketing slogan, but it does make an important point; kale has a reputation for being repugnant, and yet many people haven't even tried it.
This so-called superfood is essentially a thicker and heartier version of lettuce. If you feel like you've been losing brain cells (and we all feel that way some days), you can rest easy knowing that the kale you've been crunching on while doing your math homework is packed with antioxidants that help maintain healthy cells [source: Gillman].
If this green food doesn't work for you, there's another one ahead that is a bit more popular and still an excellent brain food.