Yes, foods.
Observe.
"When I shop for groceries, I adhere to the perimeter method of shopping. I stay on the outside of the supermarket where the unprocessed, perishable foods are. I try to stick to purchasing things like chicken, turkey, various other poultries as my main protein sources."
I used two uncountable nouns in that passage above, 'poultry' and 'food'. Uncountable nouns can be pluralized, especially when articulating the fact that you are, in fact, discussing multiple types of that particular noun.
For instance, let's look at 'steel'.
If I was describing various grades of steel, it would be correct (and some might say clearer and more concise) to say, '...it was made of various steels.' This would be as opposed to saying, 'It was made of various kinds of steel.' or 'It was made of various steel.' The second example might not even be correct.
So, to tie back to my previous statement, you can now see why I enjoy pluralizing 'food' when discussing dietary or nutritional topics.
