How can I use "Food" word as countable or uncountable?
on which occasions can I use "Food" word as countable or uncountable?

I love Italian food, especially pasta.
The doctor told him not to eat fatty foods.

I found these sentences from Longman dictionary. Can I say "I love Italian foods"?

Question

How  can I  use "Food" word  as countable or  uncountable?
on which occasions can I use "Food" word as countable or uncountable?

I love Italian food, especially pasta.
The doctor told him not to eat fatty foods.

I found these sentences from Longman dictionary. Can I say "I love Italian foods"?

Answer

I would say "I like Italian food". This is an example of a word that can be countable or non-countable, according to context. The countable version comes into play when the phrase "types of" can be omitted. I like different types of cheese. I can also say I like different cheeses.

Answer

Yes，you can.
Food is always used as a countable none.

Answer

By writing "foods", you actually mean "types of food".  When speaking in the general sense, always use uncountable "food".

Answer

however, it would be more proper to say I love Italian food.

Answer

yes, you can.