Our son was on 3 bottles a day for a while, so we dropped the lunchtime botte first and gave him whole milk with his lunch and his morning and afternoon snack. We also offered it at breakfast and dinner, but it seemed that he drank the most of it with his snacks. Now we're about to drop another bottle. I don't know if I will do morning or night time. I didn't put any formula in his sippy cup. It was either water or milk. Hope this helps.