Prescription medicine usually comes in pill bottles, but in some parts of the United States, foods like artichokes, beets, spinach, and apples have also become part of the doctor's Arsenal.

Quinoa, domesticated thousands of years ago on Bolivia's arid high mountain plains and now often misrepresented as a grain, is actually a chenopod, related to species like beets and spinach.

This category of vegetables overlaps the cruciferous family and includes chard, spinach and beets (by virtue of the leaves, but the red root is healthy, too).