The Obesity Code: Unlocking the Secrets of Weight Loss (Why Intermittent Fasting Is the Key to Controlling Your Weight)

Name: The Obesity Code: Unlocking the Secrets of Weight Loss (Why Intermittent Fasting Is the Key to Controlling Your Weight)
Price: 3.99 USD
Availability: InStock
Rating: 4.6 (37961 reviews)
Author: Dr. Jason Fung

by Dr. Jason Fung

Nonfiction Self Help

4.6 (37,961)

4.6 stars from 37,961 reviews. One of the highest rated Nonfiction books we track.

Published by Audible Studios on Brilliance AudioPublished 2017-01-01

$3.99At peak price

Last checked: Jun 15, 2026

Price history: $3.99 – $3.99

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Price range: $3.99 – $3.99

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Perfect for you if...

You've tried multiple diets and always regained the weight, and you're ready to understand the hormonal mechanics behind it.
You're sceptical of conventional diet advice and want science-backed explanations for why calorie counting fails most people.
You're interested in intermittent fasting but need a thorough foundation in how and why it actually works.

Maybe not for you if...

You prefer step-by-step meal plans and recipes over conceptual understanding of metabolic theory.
You're looking for quick fixes or dramatic transformations rather than a deep rethink of how your body works.
You have a medical condition that requires individualised supervision and aren't prepared to discuss intermittent fasting with your doctor first.

About this book

Dr. Jason Fung presents a theory of obesity and weight gain centered on hormonal regulation rather than calorie restriction. The book argues that insulin and insulin resistance are the primary drivers of weight gain, and that understanding these mechanisms is essential for achieving lasting weight loss. Fung outlines five basic steps for controlling insulin levels and explains how intermittent fasting can be used to break cycles of insulin resistance and reach a healthy weight. The book advocates moving away from traditional approaches such as calorie counting, yo-yo diets, and excessive exercise.

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Price History

Kindle price over time. Green zones = periods when the book was free.

$3.99 – $3.99

Price has been stable at $3.99 for 1 month. This book rarely goes on sale.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

Currently #4,016 in the Kindle store — a top-10K bestseller. Climbing the charts — 62% improvement recently.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

Currently 4.6★ from 37,961 reviews

Review activity has been quiet recently. Rating has remained stable at 4.6 over the tracking period.

Sale Prediction

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Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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