I heard that SIDS is pretty much unheard of in breast fed babies and there has never been a case of a sleeping mother smothering her baby in bed when the baby is breastfed.
It was in a doc called the milky-way. Not sure how accurate the info is.
I think we all really know breast is best - which is why those who didn't breast feed get so defensive. If they genuinely didn't think formula was a sub par option, they wouldn't care when people say breast is best. I say that as someone that couldn't bf my first child due to his health issues.
You're feeding your baby processed food, we all know processed food is not good for you. Breast milk is baby whole food.
It's an acceptable substitute if you can't breastfeed, but breast is the best option for all that can.