Convert YOUR Weight Gaining Factors Into Weight-Losing Habits

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Six Factors to Fit: Weight Loss That Works For You!

is a habits-based program that uses personalized strategies instead of generic advice to help you lose weight in a healthy way. It targets YOUR issues that have been holding YOU back from losing weight and keeping it off.

Using nutritional nudges and lifestyle habit tweaks, Six Factors to Fit helps you ease into a healthier and more energetic life.

“What a privilege you will have to work with one of, if not the best expert in the field! That’s what you’ll get when you follow the Six Factors to Fit program and allow Dr. Kushner and his team to guide YOU toward a weight management plan that fits your life.”

Michael F Roizen MD

4 time #1 NY Times Bestseller and co-author of the RealAge, and YOU series and What To Eat When

"There are decades of experience, research, and weight loss wisdom built into this plan! Six Factors to Fit nails it with easy tips to change the eating and lifestyle habits that have been interfering with reaching or staying at a comfortable weight. This program can change your life."

Samantha Cassetty, MS, RD

Nationally Recognized Nutrition and Weight Loss Expert, NBC News BETTER, Good Housekeeping

"Six Factors to Fit is scientifically evidence-based, practical, and caring. Dynamic team – doc, nurse, dietitian – hit the savory spot out of the park on this one. What these passionate professionals have that has been notably lacking in the field is extraordinarily effective communication skills and strategies, offering personalized tailoring that is the culmination of Dr. Kushner’s clinical insights and published research on the SIX FACTORS."

Christopher Gardner, PhD

Director of Nutrition Studies at Stanford Prevention Research Center

“Don’t get discouraged if you’ve tried everything to lose weight. In Six Factors to Fit, Dr. Kushner will quickly redirect you onto your path for success by helping you identify and overcome the issues that have been holding you back. It’s time to go beyond that one-diet-fits-all approach to take control of your weight and health – once and for all!”

Louis Aronne, MD

Director, Comprehensive Weight Control Center, Weill Cornell Medicine

“Six Factors to Fit is an innovative and fresh take on improving one's weight and health while taking into account each person’s health habits and life stressors. Using helpful visual aids and progressive meal planning tools, Six Factors to Fit offers individuals personalized and achievable solutions to losing weight and keeping it off – a welcome change from the all-too-common ‘just eat less and move more’ mantra.”

Joe Nadglowski

President and CEO, Obesity Action Coalition

“I love this book Six Factors to Fit! It’s packed with practical tips, meal and snack ideas and patient stories you can relate to, helping you learn that achieving a healthy weight is about tweaking your lifestyle to match your needs and fit your daily routine. A quick quiz, not a quick-fix diet, is the secret ingredient to getting you started on the right path.”

Connie Diekman, M.Ed, RD, CSSD, FAND

Former President of the Academy of Nutrition and Dietetics, Immediate Past Chair, Weight Management Dietetic Practice Group

“One thing is clear: every person's weight struggle is different. Six Factors to Fit is Dr. Kushner's expert approach to helping you identify and overcome YOUR struggle. It’s an engaging read filled with mindset and behavioral strategies for success. Buy this book! You will not regret it!”

Donna Ryan, MD

President of the World Obesity Federation

“If you are serious about losing weight and keeping it off, you need to read this book! Dr. Kushner is one of the most respected experts in the field and has used the latest research to create a program that gives you the best chance of long-term success.”

James O. Hill, Ph.D

Professor and Chair, Department of Nutrition Sciences; Director, Nutrition Obesity Research Center, University of Alabama at Birmingham; Author of “The Step Diet” and “State of Slim”

“Many women struggle with weight during perimenopause and feel that it is hopeless to even try to lose the unexpected and unwelcome extra pounds. With Six Factors to Fit, women can finally get inspiration, information and individualized, empathetic guidance from a leading expert to manage their weight while also lowering their risks of heart disease, breast cancer and uterine cancer.”

Lauren Streicher, MD

Women’s Health Expert; Author, Sex Rx: Hormones, Health and Your Best Sex Ever

"At last! A scientifically validated tool and a personalized weight loss program, based on each person’s behaviors, that I can recommend to patients and easily implement in my practice. Being able to validate therapeutic interventions as people lose weight is an added plus.”

Jeffrey I. Mechanick, MD

Medical Director, Kravis Center for Clinical Cardiovascular Health at Mount Sinai Heart

“Losing weight and keeping it off can be a tough, lifelong struggle for many. But not anymore! With Dr. Kushner’s evidence-based guidance, you can improve your lifestyle, get healthier and break through your own barriers to achieve lasting success. I am certainly going to use these 6 factors in my busy practice as a part of the Six Factors to Fit self-help program.”

Carolyn Apovian, MD

Director of the Center of Nutrition and Weight Management at Boston Medical Center

“As a highly-regarded thought leader and model for science-based and compassionate weight management counseling, Dr. Kushner takes readers on a life-changing journey away from the typical one-size-fits-all, restrictive diet regimens, and toward positive and productive guidance, valuable for anyone working toward building a healthier life.”

Scott Kahan, MD, MPH

Director, National Center for Weight and Wellness; Faculty, Johns Hopkins Bloomberg School of Public Health

“A remarkably friendly, flexible, and well-founded guide to weight management that provides practical strategies to address the many challenges of weight control which, for many individuals, include improving sleep, stress, self-talk, and self-image. Six Factors to Fit covers these and many other topics in an engaging and empathetic manner.”

Thomas A. Wadden, PhD

Professor of Psychology, Center for Weight and Eating Disorders, Perelman School of Medicine at the University of Pennsylvania

“Written by an internationally recognized leader in the field, Six Factors to Fit presents a realistic and science-based road to identifying and overcoming personal barriers to long-term management of weight and health. One size does not fit all!”

Arya M Sharma, MD

Founder and Scientific Director, Obesity Canada

Do you have 10 minutes to identify the issues that have been holding you back from losing weight and keeping it off?

Take the Six Factor Quiz

Meet The Authors

Robert Kushner, MD and
Nancy Kushner, MSN, RN

Bob and Nancy Kushner are writing partners, life partners, and dance partners. Having met in college, little did they know they would later marry, raise 2 children, celebrate their 42nd anniversary, enjoy grandparenthood, share a passion for healthy living and author books together.

Contributor, Dawn Jackson Blatner, RDN

You’ve probably seen registered dietitian nutritionist Dawn Jackson Blatner on Good Morning America, The Today Show or on the hit primetime ABC television show called, My Diet Is Better Than Yours, which she won! Or maybe you’ve read her reviews in People magazine as a celebrity diet consultant.

Dawn was a national media spokesperson for the Academy of Nutrition & Dietetics for 9 years and is author of two award-winning books: The Flexitarian Diet, ranked a top plant-based diet by US News & World Report and The Superfood Swap. As a healthy eating expert, Dawn’s motto is “Healthy Living, Hold the Boring.”

In Six Factors to Fit, healthy meal planning is easier than ever under Dawn’s creative and practical expert direction.

Read Six Factors to Fit FAQ