Something else that might be helpful is Open Food Facts. I found out about it the other day (and made a YSK post), and I've been using it constantly. It's got a pretty big database, which is constantly growing since it's free and open. And it's got some pretty powerful advanced search tools and graphing capabilities. Could be useful to folks who are comparing food brands
Second ingredient. Maybe it's not really cheese in America?
I've heard people talk about tiered cities but I have no idea what it means. Explain for me?
well, for one, the ingredients.
it was hard to find images on google, but mac n cheese vs Kraft Dinner
http://world.openfoodfacts.org/data Might be helpful.
And you've got slightly bad timing as Tesco turned off their public API two months ago. Although that API didn't pull ingredient information - it would have got you product names, images etc.
Tesco are, apparently, planning on releasing another public API.. but who knows when that will happen.
You might also want to have a look at this for details on how to get at the private ASDA api.