Should it be "substituted in for" or "substituted for"? [closed]

prepositions

The past action that I'm trying to describe is: one meal that has been replaced with a different meal. Which is more correct:

  1. "He substituted one meal for a different meal."

or

  1. "He substituted one meal in for a different meal."

  1. is correct.

But we wouldn't normally repeat the word 'meal'.

He substituted one meal for another

is more idiomatic.

You could also say, "He replaced one meal with another" but it's less furtive than 'substituted'. A waiter might replace: an assassin would substitute. – Old Brixtonian 57 secs ago

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