Jason Fung – författare

THE FOLLOW-UP TO THE MULTI-MILLION COPY BESTSELLER THE OBESITY CODE BY ACCLAIMED NEPHROLOGIST AND NEW YORK TIMES BESTSELLING AUTHOR, JASON FUNG, MD"Jason Fung nails it again in The Hunger Code. This book clearly and compellingly explains why most Americans are overweight and gives us a concise, evidence-based way to manage our weight with as little hunger as possible."—Dan Buettner, New York Times bestselling author of The Blue ZonesThe Obesity Code helped thousands of people lose weight naturally.The Hunger Code will help thousands more lose weight—and keep it off—in an era of weight‑loss drugs and ultra-processed foods…without counting calories.For generations, we've accepted the story that weight loss can never last—that as soon as we go off the diet or stop taking the medication, we revert to our old habits, regain the weight, and the calorie-counting journey starts all over again. Traditional medicine continues to treat the symptom of weight gain rather than addressing its root causes. Too often, healthcare systems intervene with quick fixes and short-term solutions, ignoring the factors that lead to sustainable weight loss that can last a lifetime.What if the secret to long-term weight maintenance and better health isn’t just about what you eat—or even when you eat—but why you eat?With the food industry's reliance on ultra-processed foods and the popularity of Ozempic and Mounjaro, understanding the forces behind why we eat is more important than ever before.In The Hunger Code, New York Times bestselling author Dr. Jason Fung reveals the three powerful forces that drive us to eat:Physical HungerEmotional HungerSocial HungerDr. Fung also introduces the concept of the body’s “fat thermostat”—a biological “set point” that regulates how much fat your body tries to maintain. Guided by hormones and metabolism, this internal system drives hunger and energy use, explaining why lasting weight loss requires more than just willpower …With three Golden Rules and 50 actionable tips, The Hunger Code empowers you to recognize and respond to hunger appropriately. Learn how to slow digestion, break emotional eating cycles, and overcome social pressures to eat constantly, so you can maintain a healthy weight—from scratch, after fasting, or after using weight‑loss drugs.

- Därför är insulin, inte kalorier, den avgörande faktorn bakom viktförändring! - Så gör du för att minska dina insulinnivåer och därmed din vikt! - Därför är regelbunden fasta den saknade biten i viktminskningspusslet! Alla bantningsdieter fungerar - en kort tid. Alla bantningsdieter misslyc­kas - i längden. Det är den dystra slutsatsen som många vetenskapliga koststu­dier kommit fram till. Inledningsvis har dieterna effekt, men efter 6-12 månader händer något oväntat. Även om försökspersonerna fortsätter att hålla sina dieter, så börjar de att lägga på sig kilon igen, för att slutligen återfå den vikt de hade när de startade. Någonting tycks alltså vara fundamentalt fel med de teorier och metoder vi tillämpar för att gå ner i vikt. Trots intensiv och lång­varig forskning har koden för fetma hittills inte knäckts, i varje fall inte i sin helhet. I Fetmakoden gör emellertid Jason Fung ett ambitiöst försök att i grunden ­för­stå hur fet­ma fungerar och hur man åstadkommer varaktig viktnedgång. I den hormon­relaterade modell som författaren presenterar framhålls höga insulin­nivåer - inte höga kaloriintag - som den yttersta orsaken till fetma. Fetmakoden ger många konkreta rekommendationer och tips om kost som står i samklang med denna nya fetmamodell. Fetmakoden lyfter fram regelbunden fasta som ett avgörande inslag för att bryta ett "viktdödläge" och få våra dieter att äntligen fungera - även på lång sikt. Vad vi äter är viktigt, men är bara den ena sidan av sa­ken. Lika viktigt är när vi äter. OM BOKEN "Insiktsfull och överraskande under­hållande. Läs den för att förstå varför världen blev fet, hur man kan hejda fetmaepidemin och hur du själv kan bli smal." Andreas Eenfeldt, Kostdoktorn "Den ­kanske viktigaste populärvetenskap­liga bok som har publicerats om fetma. metodiskt tecknar Jason Fung en evidensbaserad biologisk fetma­modell som är fullkomligt begriplig i sin ­logiska enkelhet." Timothy Noakes "Insulinresistens är folkhälsans fiende nummer ett och ­Fetmakoden är den mest kompletta och välunder­byggda ­boken i ämnet jag läst." Georgia Ede OM FÖRFATTAREN Jason Fung är läkare och specialist på be­hand­ling av patienter med njursjukdomar. Han är också grundare av Intensive Dietary Manage­ment-programmet i Toronto, Kanada, som hjälper patienter med typ 2-diabe­tes till per­- manent viktnedgång för att hantera sjukdo­men. Jason Fung medverkar i intervjuer och med föredrag på Kostdoktorns hemsida, www.kostdoktorn.se. UR BOKEN Den saknade biten i vikt­minsknings­pusslet För att lyckas gå ner i vikt måste vi bryta insulin­resi­stenscykeln. Det som krävs är återkommande perioder med mycket låga insulinhalter. Men hur ska vi göra för att temporärt få ner insulinhalterna till dessa låga nivåer? Vi vet att rätt sorts mat gör att ­insulinet inte stiger till så höga nivåer, men mat får inte insulinet att sjunka. En del ­födoämnen är bättre än andra, men all ­mat ökar insulin­frisättningen. Om all mat ökar insulin- halter­na är det enda alternativet att helt avstå från mat. Svaret vi söker är med andra ord - fasta. Regelbunden fasta, som leder till att insulin­halterna sänks med jämna mellanrum, har visat sig leda till avsevärt förbättrad insulinkänslighet. Det­ta fynd är den saknade biten i viktminskningspusslet. De flesta dieter begränsar intaget av sådana födoämnen som ger ökad insulinfrisättning, men tar inte insu­linresistensen med i beräkningen. Man går ner i vikt i början, men insulinhalterna och kroppens termostatreglerade normalvikt ligger kvar på samma höga nivå. Genom fastan reduceras kroppens insu­linresistens på ett effektivt sätt.

FROM NEW YORK TIMES BESTSELLING AUTHOR DR. JASON FUNG"An important and timely book. Highly recommended."—Dr. Mark HymanIn The Diabetes Code, world-renowned nephrologist and metabolic health expert Dr. Jason Fung reveals a bold, science-backed approach to preventing and reversing type 2 diabetes—without relying solely on medications, extreme calorie restriction, or complicated meal plans.Drawing on cutting-edge research in metabolic health, insulin resistance, and intermittent fasting, Dr. Fung explains how type 2 diabetes is not a chronic, progressive disease you’re doomed to manage for life—but a reversible condition rooted in one key hormone: insulin. By addressing the true cause of blood sugar dysfunction, you can reclaim your health, stabilize your weight, and dramatically reduce your risk of heart disease, stroke, and other complications.This eye-opening book is perfect for anyone searching for:Natural ways to lower blood sugar and improve insulin sensitivityA sustainable plan for diabetes prevention and reversalEvidence-based strategies for natural weight loss and long-term weight maintenanceA clear, practical guide to low-carb living, intermittent fasting, and metabolic flexibilityInside The Diabetes Code, you’ll discover:Why most conventional treatments for type 2 diabetes fail to fix the real problemThe critical link between obesity, metabolic syndrome, and insulin resistanceHow fasting protocols and low-carbohydrate, whole-food nutrition can reset your metabolismSimple, step-by-step strategies to improve blood sugar control without feeling deprivedHow to work with your healthcare provider as you implement a science-backed diabetes reversal planAccessible, empowering, and rooted in the latest medical research, The Diabetes Code offers a clear path toward:Better metabolic healthReversal of type 2 diabetes for many patientsSustainable, natural weight loss and improved energyLong-term protection against chronic diseaseIf you’re frustrated with yo-yo diets, rising A1C levels, or an ever-growing list of prescriptions, this book will help you finally understand what’s going wrong—and how to fix it.

Thousands of books have been written about the latest and greatest diets that will help people lose weight and improve health. But a key element in any successful nutritional health program is a tried-and-true method that most people haven't thought about. This ancient secret is fasting. In The Complete Guide to Fasting, he has teamed up with international bestselling author and veteran health podcaster Jimmy Moore to explain what fasting is really about, why it's so important, and how to fast in a way that improves health.

New York Times bestselling author Dr. Jason Fung joins forces with naturopathic doctor Nadia Brito Pateguana to offer methods to prevent and reverse PMOS through diet and intermittent fasting.Polycystic ovary syndrome (PCOS)—now officially recognized as polyendocrine metabolic ovarian syndrome (PMOS)—is the most common reproductive disorder in the world, affecting an estimated eight to 20 percent of women of reproductive age, almost half of whom are unable to conceive. PMOS is also associated with increased risks of heart disease, ovarian and endometrial cancers, and type 2 diabetes.In this clearly written guide, backed by science and personal experience, Drs. Jason Fung and Nadia Brito Pateguana show:How to prevent and reverse PMOS with a low-carb, ketogenic diet and intermittent fasting.How the root cause of PMOS is excess insulin—and how to get rid of it.50 recipes and a variety of meal plans for putting new knowledge into (delicious) practice.

Transform your kitchen into a powerful tool for reversing type 2 diabetesThe companion to Dr. Jason Fung’s bestselling book The Diabetes Code, The Diabetes Code Cookbook turns groundbreaking science into everyday meals—making diabetes prevention and reversal both practical and delicious.Designed for real life, this cookbook helps you lower blood sugar, improve insulin resistance, and support natural weight loss with easy, satisfying recipes the whole family can enjoy. Whether you’re newly diagnosed, prediabetic, or simply focused on better metabolic health, these dishes show that healing food can taste incredible.Inside The Diabetes Code Cookbook, you’ll discover:100+ flavorful recipes built around whole, unprocessed, low-glycemic ingredientsMeal ideas that support intermittent fasting, time-restricted eating, and flexible meal timingBreakfasts, lunches, dinners, sides, and snacks designed to stabilize blood sugar levelsSimple, practical recipes that fit busy schedules—no chef skills requiredGuidance on building a low-carb, real-food lifestyle that promotes natural weight loss and long-term healthYou’ll enjoy:Satisfying, healthy fats and proteins to keep you full and energizedSmart, low-carb swaps for your favorite comfort foodsFiber-rich vegetables and nutrient-dense meals that support insulin sensitivityMenu ideas and sample meal plans to help you get started and stay consistentPerfect for anyone seeking:A diabetes-friendly cookbook that aligns with Dr. Jason Fung’s approachMetabolic health recipes that reduce sugar cravings and energy crashesPractical tools for type 2 diabetes reversal, pre-diabetes, and blood sugar controlA supportive, food-first way to complement medical care and lifestyle changesWith every recipe crafted to support your body’s natural healing systems, The Diabetes Code Cookbook empowers you to take control of your plate—and your health. Enjoy food that helps you feel better, think clearer, and move confidently toward lasting diabetes prevention and reversal.

FROM NEW YORK TIMES BESTSELLING AUTHOR DR. JASON FUNG: A 12-Week Journal for Reversing Type 2 Diabetes and Taking Charge of Your Health.Known as “the doctor who invented intermittent fasting,” Dr. Jason Fung has helped thousands of people lose weight and prevent and reverse type 2 diabetes with his clinical research and internationally bestselling books The Obesity Code and The Diabetes Code. Readers around the world have followed Fung’s method and improved their overall health and wellbeing.Now, you can track your progress and health in one handy place. In this user-friendly journal, you’ll find:Space to record your daily food intakeTools for monitoring glucose spikes and dipsWeekly challengesMindfulness prompts for developing a positive relationship with foodRecipes from The Diabetes Code CookbookShopping listsWith Dr. Fung's empathetic approach and science-backed information and tips, The Diabetes Code Journal offers a daily practice that anyone can follow. Get ready to kickstart your journey to better health today.

Lose weight, improve your health and revolutionize your lifestyle with a cutting-edge approach to intermittent fasting that blends scientific strategy with personal dieting experience.For many who are eager to try out fasting, the regimen can feel a bit intimidating. People rightly wonder: How often can I eat? Will I be able to focus at work? Will I have enough energy to exercise? And perhaps the most concerning question of all: Won't I be hungry all the time?! Life in the Fasting Lane takes you by the hand and walks you through the basics of a fasting lifestyle. Dr Fung and Ramos explain the fundamentals of fasting and offer a customizable approach and Mayer shares her honest perspective and hard-won knowledge as a success story who turned her life around. With chapters that address everything from meal planning to mental strategies and exercise to socializing, Life in the Fasting Lane is a unique and accessible guide to developing a sustainable and beneficial fasting routine that offers dramatic, lifelong results.

By the 500,000-copy bestselling author of The Obesity Code.Recipes to revolutionalise the way you cook, eat, and live.In The Obesity Code, Dr Jason Fung introduced the idea that obesity is caused by our hormones, specifically insulin, and offered practical, easy-to-follow advice on how to lose weight for good. Now, The Obesity Code Cookbook makes it easier than ever to follow his methods. Over 90 mouth-watering recipes — from slow-roasted pork shoulder to chia pudding and almond cake — showcase healthy fats, nutrient-dense foods, and low or no carbs, with diet plans to help balance your nutrition and energy requirements with your long-term health objectives.The Obesity Code Cookbook is an indispensable tool for home cooks looking to lower insulin, lose weight, or simply lead a healthy, longer life.

We are in the midst of an obesity epidemic, but despite being inundated with diet advice we are only getting fatter. We count calories and exercise regularly, yet still the pounds won’t budge. Why?In this highly readable and provocative book, Dr Jason Fung sets out a groundbreaking new theory: that obesity is caused by our hormones, rather than a lack of self-control.He reveals that overproduction of insulin in the body is the root cause of obesity and obesity-related illnesses including type 2 diabetes, and offers robust scientific evidence that reversing insulin resistance is the only way to lose weight in the long term.It turns out that when we eat is just as important as what we eat, so in addition to his five basic steps — a set of life-long eating habits that will improve your health and control your insulin levels — Dr Fung explains how to use intermittent fasting to break the cycle of insulin resistance and reach a healthy weight — for good.