I've been looking around the Internet. Some websites say that foods is incorrect but others say it is correct.

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    Hi, Matt_K. I voted to close this question as "general reference" because as it is written, I think you can find a good answer in a dictionary such as Wiktionary or OALD. You can learn more in our FAQ, including why some questions are closed, as well as find out how to ask questions here! – aedia λ Feb 17 '12 at 17:52

Food in its commonest sense is a non-countable noun, with all the effects of that. It's already a plural. You would eat "some food" not "a food". You would say "less food" not "fewer foods".

However, there is a less common usage where "a food" means "a type of food":

"Cheese is a food made from milk"

... and in this form, you can pluralise it ...

"Italy is the source of many delicious foods -- pizza, pasta, salami, biscotti..."

For comparison, think of "a people" - Are there meta-plurals beyond "peoples"?

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    I had a fancy for starting posts and comments with "Peeps," wherever such lingo was tolerated. "Peoples!" doesn't have quite the same ring to it. – Kris Feb 17 '12 at 10:52
  • Thanks, which means when we are talking about multiple different number of food, we can use foods? – Matt_K Feb 18 '12 at 3:32
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    Food is not plural! The first paragraph in this answer makes no sense and is highly misleading. Yes, food is usually non-count, and that’s why we say ‘some food’ instead of ‘a food’. But it’s quite unambiguously singular, which is exactly why we say ‘less food’ and not ‘fewer food’. – Janus Bahs Jacquet Jan 29 '18 at 18:50

Kraft Foods ... Lots of byspels of the plural for foods. It's common and correct.

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