My mom couldn't breastfeed me, couldnt... not... "she didn't want to".
I only found out last year, and she was near in tears when she recalled. Said she felt like she failed as a mother and a woman.
Finding that I hadn't been breastfed (and being shocked by the knowledge) I began asking around and doing a bit of research, and there are loads of women who CAN'T breastfeed for whatever reason.
That's why they had wet nurses back in the day!
I can't say that I could put my fingure on any specific results of my not having been breastfed, but I do have digestive issues galore! Perhaps, that's why, but I couldn't say for sure.