Welcome to the board, i'm not sure of anything online that would have vitamins. There are sites which give the nutrient breakdown of foods, but they just do the macro nutrients, and not the micronutrients of the food aswell.
What do you want it for if you dont mind my asking? Is it just interest or do you have a specific requirement because you can probably only get that kind of information from a software package which is likely to be very costly!
Sorry i cant be of more help.
Edited to say: I've just found this site which may be of use to you:
http://www.nutritiondata.com/
Edited 12/07/2009 19:24 ET by cl-frances1990
