>>Name any minuses to successful breastfeeding to the baby. We are not discussing inconvenience to adult parents here. Be sure to cite your sources.<<
Your response was not mainly to the point. Note the word "successful".
In large part, physicians are not trained in the advantages or techniques of breastfeeding. So I woudn't use most of them as sources. Medical websites are generally not the best sources either. The fact that physicians are ill-informed about breastfeeding adds to unsuccessful breastfeeding statistics. A lot of what you find on such sites is geared to medical intervention in a natural process.
Toxicity is often overstated, but in cases of real danger, then of course artificial milk should be substituted.
In actual fact, breast milk protects from most illness as it contains immune factors. For example if the mother is getting a cold, before she feels symptoms, the baby is getting immune factors for that specific virus. The baby will probably avoid the cold or get a milder case.
Just in the last two years two vital substances were added to artificial formula. No physician knew about these quantities that were recently found in breast milk. Natural milk is still being investigated and all the myriad advantages are not catalogued. Some of them are at:
https://my.inova.com/public/healthresearch/content_display_full.cfm?DOC_ID=P06824
http://www.storknet.com/cubbies/breast/newmanprotects.htm
This one also lists toxic or inadequate formulas over two decades:
http://www.parentingweb.com/lounge/whybf.htm
It is unfortunate that your neighbors were unsuccessful. All of us have positive and negative anecdotes to relate. It remains to be seen if said 'muscular' condition meant breastfeeding had to stop. Some reasons for low milk production are poor diet, not enough nursing time, poor technique in nursing, social pressure, and not enough body fat to produce adequate milk.
You are exactly right. My husband is a doctor. He learned almost nothing about breastfeeding during his medical school training. They told him it was better, but he learned nothing about technique or how to help women do it sucessfully. He learned far more from me and our four children.
I have done some breastfeeding counseling. I am appalled at what some mothers are told by doctors and nurses. I suspect that in most cases of "unsucessfull breastfeeding" there is nothing wrong except poor advice.