by Jenna » Sat Jun 01, 2013 1:13 pm
It is really interesting that you have asked this question in this way. I am a former Paleo/GAPS/WAPF eater who has been McDougalling for 5ish months. I am also nursing a baby who is almost 6 months old. With my previous baby, I ate paleo while I was nursing and I had a number of issues. I ended up consulting with Chris Kresser (which was very $$$, but he did help me figure some things out).
Anyway, I have been McDougalling for most of my nursling's life, and he is huge and extremely healthy. His growth has been almost identical to his older brothers' and I have had an oversupply of milk with all of my children. My diet seems to matter very little in terms of my nurslings' health and growth.
McDougalling has provided me a number of benefits that Paleo just couldn't fix, most especially the belly pain I was constantly having on Paleo, no matter what I did differently.
As for vitamin A, etc, I think the Paleo folks, Chris Kresser and many others, focus WAY too much on tiny details like that, and it doesn't usually help anyone. If you are concerned about vitamin deficiencies, get a blood test after a few months and see if there are any. Most people don't need to consume anything super special to get the necessary vitamins. I do take a raw food prenatal and b12.