I searched the net and I've found out that the word "food" doesn't have a plural form, much like furniture. So now I'm really confused. I read a lot and I've noticed that "foods" is still being used, and I still hear some native speakers of English say "foods". In addition to that, we can actually see it in food brands like "Kraft Foods" and "Best Foods". I would really appreciate it if someone can clear this for me.
It's actually a post of mine on Facebook and I'm not really sure if it's correct. It goes something like this: "Can you make processed foods healthier? The answer is you can't. There is no substitute for real and natural foods." When I said processed foods, I was pertaining to a group of processed food, not just one or generic, so is it correct?