Can't understand why though, I have been eating all my vitamins. Even some home-grown ones: Cress. My mother used to grow it every winter, and we'd have it on some buttered bread in the evening. Mmmh.
It's very easy to grow: Just some tissues or toiletpaper on a plate, sprinkle the seeds on it and keep wet. In about five to seven days the little plants are thumb-high, and then it is time to harvest them with scissors. Excellent in a salad, or on your bread!
This is the garden cress, Lepidium sativum.