1. How do you cook it?
Boil in lots of water
Boil in a little water
Steam
Microwave
Roast or stir-fry
2. How long?
Just tender
Very soft
I use the cooking water (soup, sauce, gravy)
Vitamin C and B vitamins
Carotenoids (like beta-carotene)
A rough guide to how the research points, not measured values. Real results vary a lot by vegetable, so the bars show direction, not exact amounts. "Kept" means still available to you.