But the same food really IS different across borders. There was a test of Coca-Cola published, within 8 close countries of European Union, each had different composition (esp. type and amount of sugar):

http://i.sme.sk/cdata/5/58/5843725/800-med.jpg

I remember a similar test done with Milka chocolate, the content was even different on the packaging label, only the artwork on the front was the same.