Interesting question... I've been ebf DS (7 mo) until started weaning a few weeks ago and I'm returning to work on Monday.
While he's in nursery, he has 1 or 2 bottles of formula (can't express enough and won't be able to at work - I know law but impossible). I'm starting to give him one bottle a day when he's not at nursery to take the edge off my supply.
Here's the question - breastfeeding requires between 300 & 500 extra calories a day (depending on source). How many extra do I need now?
Baby weight is long gone already but my tum has suddenly gone flabby so I need to watch what I eat (and start crunching) - but don't want to effect supply.