Data tables are data bases which can have a copyright while the singular data does not have (can something that does not have uniquness and identity have a copyright?) sinc ethe collection is work on its own. A telefonnumber does not have a copyright, a telefon book can. While you can read the calories from some label thw people that collect their data can have some copyright on their collection.

So it is likely allowed to make your own data base but you cannot copy it from somebody else. Of course how can somebody proof that you did not collect it but only copied it? Their is no signature in numbers. However the labels and names and the size of the portions may have.

Of course downloading an converting for personal use might be something different...

But look for example at http://www.nal.usda.gov/fnic/foodcom...t/sr18a208.pdf or http://www.ars.usda.gov/Services/docs.htm?docid=15867 (what is its copyright?). Would this something that would suite the needs of you, if you could import it into WeightJinni (the database is big!)?

There are alsotextual or csv formatted versions of the data...

However before I start to convert, perhaps a more compact data base would be more helpful (60 character descriptions are a bit heavy)?