About the Authors

Naomi Moriyama is a Manhattan mom and author of “Secrets of the World’s Healthiest Children: Why Japanese Children Have the Longest, Healthiest Lives — and How Yours Can, Too” (translated into 8 languages so far), “Japanese Women Don’t Get Old or Fat: Secrets of My Mother’s Tokyo Kitchen” (translated into 21 languages), and “The Japan Diet: 30 Days to a Slimmer You”.  Naomi has served as Chief Marketing Consultant for Ralph Lauren Japan, as Director of Marketing at HBO in New York, and as Account Executive at Grey Advertising in Tokyo and New York. She grew up in Tokyo but now lives in New York City with her nine-year-old son and her husband and co-author, William Doyle.

William Doyle is an award-winning, New York Times bestselling author. He has authored or co-authored 14 books and served as director of original programming for HBO as well as a producer. He has been selected a Fulbright Scholar for 2015-16.

Naomi during her 1st week in America. (100 pounds)


Naomi after 2 months of eating American-style food and portions (125 pounds)


Billy in 2000, weighing 220-plus pounds, or technically obese.


Billy today after 5 years of Japan-style eating (185 pounds)

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© 2015 Naomi Moriyama & William Doyle. All rights reserved | Credits