Hi, i read a lot of articles about maximum of formula + milk per day to be 32 oz. my Lo is 15 weeks and 16 pounds. He is now eating about 32 oz. he has no interest in solids and does not seem to want more yet but he probably would soon. 2 weeks ago, he is eating about 30 oz on average. Is there any harm in giving him more? Not sure why 32oz is the limit. Thank you!