I don't think they know honestly. I think our bodies know more or less what we should take in. Well mine does. As I said earlier the smell of coffee sends me running to the bathroom. Let alone the taste. Alcohol I haven't touched because firstly I have a feeling it's not going to be good and secondly can't stomach it either.
My mom told me alcohol is fine during pregnancy but I still refuse to touch it. And it's not because of what I've read. Call it a 6th sense *shrug*
But the part about dr's saying women who eat a chocolate a day are at a lower risk of miscarriages?!? That makes me even more weary of what doctors believe. Chocolate contains caffiene.. Hmmmm.... I dunno
