Not literally 
I'm 16 weeks ish, and am on cyclizine for hyperemesis. It's helped me get back to normal-ish life, but the only food I want to eat is carby crap! I normally love meat and veggies, but I just can't face anything more complex than toast, cake, crisps and pasta. I believe you are what you eat, and when not pregnant I'm highly aware of the food I eat and its effect on my blood sugar, energy levels, skin, flabbiness and so on.
My question: is there actually any research which shows an effect on the health of the baby is affected by the diet of the mother?
It seems obvious somehow that it should, but I can't find anything to suggest it matters what I eat as long as I'm getting enough calories!