Is there any link between the foods a pregnant woman craves and the foods the bab will like?

Food tolerance. Probably not. A baby will learn to like or dislike the foods it is fed as it grows. Some likes and dislikes are predicated on the body's tolerance to certain foods based upon blood type. An interesting book to read is "the answer is in your lblood type" by steven weissberg, M.D. Which details the intolerance to certain foods based upon a person's blood type.