My son is exclusively breastfed and though it was pretty hard at first and so tiring, still is to be honest, but he has gain 5 lbs since birth and it only 8 weeks old! He started out at 8lb11oz went down to 8lb8ox and now weighs 13lbs8oz! I'm so proud of myself I could scream. I struggled so much breastfeeding my daughter and ended up combo feeding so never got to feel the pride in knowing that he is thriving because of me only...not trying to be an ass and so not trying to brag or rub it into anyone struggling I know how hard it can be. But damn! I can't believe I've done it!