This book provides pregnant women and new parents with evidence-based information on pregnancy and parenting. Most parenting books advise pregnant women or new parents what to do and, at best, defend that advice by citing recommendations from highly selected  experts  or equally selective  studies.  Some parents prefer an advice book, but an increasing number do not trust the advice they receive unless they are convinced of its scientific backing.Dr. Kramer does not tell pregnant women or new parents what they should or should not do. Instead, he focuses on controversial decision choices for which recommendations and practices differ substantially. He systematically reviews and synthesizes the available scientific evidence bearing on those choices, summarizes the strengths and weaknesses of that evidence, and translates the summaries in a way that encourages parents to make their own informed decisions.