I agree with allnaturalmama
If you are going to consume cow's milk (or goat's milk- whatever) it should we organic, raw (preferably from pasture fed cows) and from a very reputable source. I don't think it should play a major part in your diet though. After all, cow's milk is meant for baby cows
We don't really consume any dairy, soy or peanut products in our house because of dd's allergies (dairy, soy, sesame, walnuts, eggplant, pears and who knows what else) and family history of allergies (lots of them). I keep craving peanut butter though
: and I know I can't have it!
About Vit C, my MIL took extra vitamin C daily (up to 1g a day usually) while pregnant with my DH. He is a very healthy person and rarely gets sick
I think she read about the work of Dr. Klinner or some other doctor who advocates Vit C like that. I take a packet of Emergen-C (1g Vit C) a couple times a week while pregnant. If I'm sick I take 2 per day which my midwives said is great. I feel better when taking it than I ever have before in my life.
Probiotics are great during pregnancy as you can be more prone to UTIs and yeast infections. I've found I actually have to take them daily (I've never had to before) to keep my healthy bacteria in check. If I quit taking them then I get UTI symptoms within a week.
Cod liver oil- I know alot of mamas on here take it and have very healthy babies
I take plain Fish oil supplement capsules from Spectrum naturals instead though because liquid Cod liver oil smells gross to me (although it doesn't have the same vitamin D that would probably be good for you). I just wouldn't take alot of it because vitamins A, D, E and K are all fat soluble, meaning that they can be stored in your body and become toxic if you take in extreme amounts.
If you asked about alot of these things on a mainstream type of board, you'd probably get VERY different answers than what many believe here