http://nutritiondata.self.com/
for example, check out the stats on collards (a new year's tradition):
http://nutritiondata.self.com/
the % daily values are going to be different, of course, depending on your personal plan. but this site has an amazingly comprehensive array of stats for all sorts of foods, whole or processed, brand names and not, cooked or raw, in various serving preps and sizes.
knowledge is power!
