What is the difference between brand food and food brand?

I know what is ethnic food, exotic food, vegetarian food, but I don麓t know what is brand food?|||Brand food is a "name brand" like Kellogg's, Betty Crocker, Campbell's etc...the food brand is each stores "generic" for the same food at a lesser price. Be careful...some food brand items do not have the same quality. It is all just trial and error. :-) Hope I helped.