Yourself,
@Robnes and others should keep in mind, this is not a pissing match between your qualifications and mine (or others here). It is more accurately a pissing match between your chosen sources of info and ours. So if you tell me I am not qualified to speak as an authority on these matters, you're correct. But it does no good. However, can you say with absolute certainty that your sources are more qualified than ours? Can you disprove or discredit Dr.McCullough? If you can, then it would benefit me greatly in forming my opinion (and therefore doing what's best for my kids). So please bring the receipts. I remain open to changing my beliefs. Science and our understanding of nature is always evolving. So to be locked into a singular belief is the real anti-science position.
So then the question becomes, If Dr.McCullough is more of an authority, more qualified and more accurate, are you willing and able to adjust your perspective?