I have a question I've been wondering about for a while, and the thread on one breast/both breasts per feeding has prompted me to finally ask. Why are we still discussing foremilk and hindmilk? Peter Hartmann's research has shown that there isn't really much change in the fat content of milk during a feeding. In other words the foremilk/hindmilk theory is just a myth. He actually demonstrated this with several mothers and their nursing children at the LLL Western Division Conf. this past August, and I understand he wrote an article that appeared in JHL a couple years ago on this topic. I'm curious about why no one has mentioned this. I thought Peter Hartmann and his work were respected within the lactation community. I hestitated to ask about this since I didn't want to appear to be too critical, but I think that since IBCLCs and LLLLs are the "experts" when it comes to helping moms breastfeed their babies and may be in the best positions to help educated the medical profession as well, it's important to keep up with current research. Any thoughts or comments? Dorothy Rae Collier