Hi Trisha,
It depends on the brand but formula does have slightly more calories than whole milk. But not too much, I think formula has about 20 cal/oz and milk has 18. I still do formula for the before bed bottle but cow's milk for the rest. Before bed is probably just superstitious as I always give the special "Good Night"sleep well formula, but I am holding on to this one for a bit as it's the only bottle that is not given at a mealtime.
For the other drinks I heat up the cow milk in a sippy cup 30 sec in micro (i know you're not supposed to
) so it's lukewarm, but if i have time i just leave it out at room temp so it's not so cold. advantage of doing this is if he doesn't finish i can put it back in the fridge. once it's microwaved i don't re-cool.
We do the same amt of milk as you. At this point most of luke's calories are coming from his meals. Do your dd's seem hungry after their bottles, or are you just concerned about it?