This is not a diet book. Instead it explains how the body loses weight, how some medications affect the speed of weight loss, how various food groups are broken down within the body, what you should weigh for your height, what the microbiome is and how to heal it, etc. The purpose of the book is to give you the tools to maintain and slim and healthy body for the rest of your life. The list of chapters best describe the topics discussed. 1.Reasons we put on weight 2.Why Rapid Weight Loss isn’t Dangerous 3.The Way the Body Loses Weight 4.Why Your Weight Goes Up and Down 5.Your Basal Metabolic Rate 6.The Microbiome – Our Gut Bacteria 7.Why Exercise does not make you lose weight 8.That Plateau – When you Can’t Lose Any More Weight 9.Height and Calories 10.So What Should We Weight? 11.Medications Can Increase Our Weight 12.How to Spot Food Intolerance 13.Emotional Eating 14.High Starch and No Starch Content 15.Intermittent Fasting and Fasting 16.Convenient Food Choices 17.Why BMI Can Be Inaccurate 18.Putting on More Weight as We Grow Older 19.Testing Time 20.Everybody Has Different Biology 21.Blue Zones 22.How Much Protein Does Your Body Need to be Healthy? 23.Feeling Sated – Satiety 24.Shrinking Your Tummy 25.Where Does Your Weight Go? 26.Different Food Choices 27.Doing it Together! 28.How to Lose 20 lbs in 20 Days.