Answer:
Keep the Comma
Step-by-step explanation:
This is an example of main clauses and subordinate clauses.
A main clause is a part of a sentence that would make sense by itself.
For example, the part of the above sentence, "we should set aside some food for him." Makes sense, doesn't it?
A subordinate clause is a filler phrase in the sentence; it adds context, but if it stood alone, it wouldn't make sense.
For example, "If Klaus Baudelaire is running late,"
If someone just said this to you, you would be confused, right?
Hope this helps! :)