Programming a ckd diet application and need food data resource. Any URL's Out there?

[rotovibe]

I'm trying to code a software application that measures everything possible for a ckd diet regiment plus other bonuses*.
BMR, Cals needed, etc...all the basics plus a progress chart suited for the user.
I am constructing a nutrient/ calorie DB and need a source for all the nutrient info...basically need a calorie chart of A-Z foods in digital format like a flat file or webpage such as this...

http://www.ntwrks.com/~mikev/chart1.html

Hence my question...Does anyone know of an online (free) source that has the nutrient/calorie profiles of ALL known foods/ groups that displays in the above mentioned format?

thanks a bunch...

*half-life chart, scheduling, etc...