“It can take six weeks for your womb to go back to the size it was, and even longer to lose any extra weight,” the site says. “Breastfeeding is a great way to get your body back, as it burns around 300 calories a day, and helps your womb to shrink more quickly. Also try to eat healthily and take gentle exercise.”
Article source: https://www.huffingtonpost.co.uk/entry/nhs-start4life-breastfeeding-advice-criticism_uk_61e92c54e4b0a864b07c4cd7