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In a World of Obesity, The 20 Billion Dollar Diet Offers Healthy Advice

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Americans spend more than $20 billion annually for weight loss plans, books, supplements and fat-burning foods and yet the obesity rate is higher than ever.  America is on a $20 billion diet that isn’t working!  Authors Marina MacDonald PhD and Judith McManus M.A. reveal the answers to escalating obesity rates in their new book The 20 Billion Dollar Diet: Why Diets Fail and How to Succeed at Weight Loss for Good.

Judith McManus spent thousands of dollars on weight loss, but never achieved lasting success - until now.  Empowerment began when Judith researched what foods, coping strategies, and long-term plans were best for her rather than outsourcing her weight loss to others. With Dr. Marina MacDonald, the authors document Judith’s personal weight loss journey with scientific studies in psychology, nutrition, and neuroscience.  

The 20 Billion Dollar Diet: Why Diets Fail and How to Succeed at Weight Loss for Good exposes the universal reasons for diet failure as well as the comprehensive keys to long-term success.  The book integrates a personal, holistic, and cutting-edge scientific perspective with step-by-step exercises, formulas, grocery list, sample menu, nutrient and calorie requirements, recommended reading list, and over 500 scientific citations.

The 20 Billion Dollar Diet: Why Diets Fail and How to Succeed at Weight Loss for Good is available on

Specializing in medical research and education, Dr. Marina MacDonald holds a M.S. and PhD in nutritional sciences with specialization in metabolism and physiology.  Her work is dedicated to the practical application of scientific discoveries, with the long-term aim of improving the health of individuals and society.

As an educator in both the public and private sector, Judith McManus is the author of four books, over thirty online courses, and other instructional materials used around the world.

For more information about The 20 Billion Dollar Diet, please contact Judith McManus MA at 520.982.4452 or visit

Media Contacts:

person_outline  Full Name:Judith McManus
phone  Phone Number:520.982.4452
business_center  Company:20 Billion Dollar Diet
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