AUTHORS : Marie-Claire Arrieta Ph.D , B. Brett Finlay Ph.D

This engaging and important book explains how the millions of microbes that live in our bodies influence childhood development; why an imbalance in those microbes can lead to obesity, diabetes, and asthma, among other chronic conditions; and how–from conception on–parents can take concrete steps to positively impact their child’s long-term health. 

Published in 2006 and Translated into 14 languages, this book joined bestseller lists in USA and Canada.


“What a triumph. This book should be read by every pregnant woman, every parent, every pediatrician.”

—Margaret McFall-Ngai, Director, Pacific Biosciences Research Center, University of Hawaii

“This book might change your perspective on real cleanliness…and along the way help you to raise healthier kids.”

—Giulia Enders, author of the international bestseller Gut

 “This helpful resource sets itself apart from health books that offer unfounded and even speculative claims by staking a position firmly in the medical mainstream.”

Best of 2016 books, Publishers Weekly

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