My son is about 7.5 months old and goes to his grandma's house for day care 4 days per week. I have been providing 3.5 oz bottles but my mom recently said it seems like he wants more.
I just used http://www.fourfriends.com/cgi-bin/milk.pl and it said at a minimum I should be providing 4.8 oz!! I do NOT produce that much when I pump. Not at all. I think on a good day I can get about 12-13 oz but I have days where I barely get 7. I pump 3-4 times.
So is the calculator right? My son seems to be doing ok... putting on weight (though he is a small guy) and developing well.