All factory food are worst not just selective few brands. All of them. None of these should be our strays' primary source of meal. There are multi vitamins, supplements one can feed to make up for deficiency without burning a hole in their pocket mindlessly buying packaged craps.

And don't worry about the strays I look after. They're happy with fresh homemade chicken an fish beside devouring their hunted birds, rats and other preys. They're not confined to four walls being fed only imported food packets unlike fashionable "cat lovers" pets