yes when you first start them on it but ,
give it 3 more months and he shoud be good to go on cold milk,
for now it is to cold for his little throat to handle the chillin sensation,
be carful the cold milk if not warmed can put him into something
called {cold throat shock}its where the milk freezes his throat tubes
{food way only} but it does not and will not stop him from breathing
so just make sure the milk is warm.
if you have any more questions you can email me at [crazyadizer21@yahoo.com]
my screen name is [ BsPregnant ] or [ BsPrego3/24/09]