My aquaponic buddies are making fun of me for planting weeds in the growbed.
There is so much Vitamin K in dandelion greens that it seems too good to be true; way more than any other greens I normally eat. A few leaves are the equivalent of a whole bowl or Romaine.
Plus the flowers and roots are edible although I haven't stumbled across the numbers for them yet.
"Eat food, not too much, mostly plants." Michael Pollan