Hi,
I read the following sentences in a book. I don't understand why the first sentence use 'food' instead of 'foods' . The second sentence shows that food is a countable noun. 'Food' can be both countable and non-countable, and we often don't much care about making a distinction or speaking consistently.
Also as a side question, why there is no comma before 'and', in #1sentence, even though it is acting as a conjunction between two indpendent clauses.? Until I read posts here by some other students of English who mentioned this so-called 'rule', I had never heard of it. You'll read lots of sentences that do not use a comma before 'and'. I'd say that some factors that influence comma use are the length of the sentence and the complexity of its structure.
1. Go to a mall food court and make a list of food that is good for your health.
2. They try to avoid foods that are high in fat or sugar.
Best wishes, Clive