I was going to refer you to a good site I have on calorie and nutrient charts, but now I'm less sure.
------------ sharp, your textbook is the most fundamental one, just read it thoroughly to see if you can understand it. Or you can always perform a search on Google to find what you need.
Or you may also want to try Wikipedia and athworld.wolfram.com/ [Broken]. They both provide rich, informative articles. :)