Producing Milk has its benefits
, you could be burning THOUSANDS of calories on average within a day depending how much breastmilk you’re producing of course! This is exactly why, as a nursing mother you need to be consuming an additional 500 calories per day on average - it's a high energy expending activity! Actual additional caloric intake would depend on your actual breastmilk production.
To put that in context, an average sized runner burns around 100 calories per 1.6km, trust me when I say you're burning a whole lot more! Plus, breastfeeding is helping your uterus contract and expel your placenta naturally, reducing blood loss. How's that for a personal trainer?! Pooch be gone!