My favorite vegetable fact is that before people decided Kale was a superfood, the world's largest purchaser of Kale was Pizza Hut. They didn't serve it on anything; used it to decorate their salad bars. It went from being a thing you only used to decorate other more important foods to being a superfood, like some sort of green, leafy disney princess, and now everybody is trying to dethrone it and apparently failing.
Somehow Kale ended up with a Shakespearean narrative arc and nobody noticed.