The Obesity Code
by Jason Fung
A nephrologist argues that obesity is a hormonal problem driven by insulin, not a caloric one, and prescribes reduced refined carbohydrates and intermittent fasting. The insulin thesis is contested and overstated; the practical advice, fewer processed carbohydrates and eating windows, helps many people. Read as one model among several.
Read it if…
you have failed at calorie counting and want a different frame to try.
Skip it if…
you want consensus science; the model is contested.
Three things you will actually use
- Insulin matters; refined carbs spike it.
- When you eat matters, not only what.
- Fasting is a tool, not a punishment.
Do this first
Try a twelve-hour eating window for two weeks and note hunger and energy.
Our verdict
Contested model, useful tools.
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