The Obesity Code

Fung's direct follow-up to The Obesity Code turns the book's intermittent fasting framework into a practical, protocol-by-protocol implementation guide.

If you finished The Obesity Code and immediately wanted a step-by-step plan rather than more theory, The Complete Guide to Fasting is exactly what to read next. Jason Fung teams up with Jimmy Moore to translate the insulin-and-fasting argument into concrete protocols — 16:8, 24-hour, and extended multi-day fasts — complete with meal plans, troubleshooting, and real patient stories. Where The Obesity Code builds the scientific case, this book hands you the toolkit. It's the natural next read for anyone who found Fung's hormonal obesity framework convincing and wants to know precisely how to apply it to their own life. Readers searching for 'books like The Obesity Code with practical fasting plans' consistently land here first, and for good reason.

Like Fung, Means argues metabolic dysfunction — not bad luck — underlies modern chronic disease, and delivers actionable interventions grounded in cellular biology.

Readers who appreciated The Obesity Code's central argument — that mainstream medicine is treating symptoms while ignoring root hormonal causes — will find Good Energy a compelling companion read. Casey Means, a Stanford-trained surgeon turned metabolic health advocate, makes a structurally similar case: that chronically poor 'cellular energy' production drives obesity, diabetes, heart disease, and mental illness simultaneously. Both books challenge the calorie-in/calorie-out orthodoxy and both lean on insulin and blood-glucose signalling as the key levers. Good Energy goes further into continuous glucose monitoring and the food-policy landscape, making it ideal for readers who liked Fung's systems-level thinking but want a broader, more contemporary lens. If you're searching for 'what to read after The Obesity Code', this is one of the strongest answers in the catalogue.

Attia, like Fung, is a physician who broke with mainstream dietary guidelines; Outlive covers metabolic disease, insulin resistance, and lifespan through equally rigorous but broader medicine.

Peter Attia spent years as a conventional surgeon before concluding that standard preventive medicine was asking the wrong questions — a journey that mirrors Jason Fung's disillusionment with calorie-focused obesity treatment. Outlive digs deep into what Attia calls 'the four horsemen' of chronic disease — cancer, cardiovascular disease, neurodegenerative disease, and metabolic dysfunction — with insulin resistance and visceral fat playing starring roles, just as they do in The Obesity Code. The tone is similarly confident and iconoclastic, and Attia is equally willing to cite studies that contradict official guidelines. For readers who liked Fung's blend of clinical authority and contrarian reasoning and are now wondering 'if I liked The Obesity Code, what else should I read?', Outlive offers the same intellectual satisfaction with a wider health aperture.

Both Fung and Greger are research-citing physicians challenging weight-loss orthodoxy — but Greger reaches the opposite dietary conclusion, making this a sharp, productive counterpoint.

How Not to Diet is one of the best books to read alongside The Obesity Code precisely because it disagrees with it. Michael Greger is equally systematic, equally skeptical of Big Food, and equally comfortable piling up research citations — but his analysis of the same obesity literature leads him toward whole-food plant-based eating rather than fasting and carbohydrate restriction. Reading both books gives you a genuinely balanced picture of where the science is contested. If you found Fung's argument compelling but want to stress-test it, or if you're the kind of reader who likes understanding a debate rather than just one side of it, pairing these two is invaluable. People searching for 'books like The Obesity Code that challenge it' or 'science-based weight loss books' will benefit enormously from putting both on their shelf.

Moss investigates the food industry's deliberate engineering of hyperpalatable products — the supply-side explanation for why Fung's hormonal disruption became so widespread.

The Obesity Code explains why your body holds onto fat; Salt Sugar Fat explains why it became so hard to avoid the foods that trigger that response in the first place. Pulitzer Prize-winning journalist Michael Moss spent years inside the major food corporations and documents how processed food was scientifically engineered to override satiety signals — the exact hormonal environment Jason Fung argues produces chronic hyperinsulinemia. The two books are natural companions: Fung gives you the biological mechanism, Moss gives you the industrial story behind it. Readers who came away from The Obesity Code angry at how the food environment is structured will find Salt Sugar Fat a deeply satisfying extension of that anger, grounded in reported fact. A must-read for anyone looking for 'books like The Obesity Code about food industry manipulation'.