When to use FOOD and FOODS?

When you talk about food in general, you say FOOD. It’s an uncountable noun:

[Tweet “You say FOOD when you talk about food in general. It’s an uncountable noun”]

• Is there any food in the fridge?

When you talk about TYPES of FOOD, you can say FOODS:

[Tweet “You can say FOODS when you talk about TYPES of FOOD “]

• I can’t eat certain foods, because I’m allergic to them.

Learn more about words that don’t normally have plural forms here:
List of Words Without Plural Form
8 Funny Idioms About Food with Examples and Explanations
50 Popular English Idioms to Sound Like a Native Speaker