Blood sugar and insulin sit underneath energy, weight and a huge share of chronic disease and getting them right pays off for decades. These six books explain the science and the everyday habits, from simple tricks to flatten glucose spikes to the deeper story of insulin resistance. They do not all agree, which is honest. This topic is medically serious, so if you have diabetes or take medication, talk to your doctor before changing anything.
Quick picks:
- Best practical guide: Glucose Revolution by Jessie Inchauspé. View on Amazon
- Best on the mechanism: Why We Get Sick by Ben Bikman. View on Amazon
- Most influential: The Obesity Code by Jason Fung. View on Amazon
Understanding insulin
Why We Get Sick by Ben Bikman
Ben Bikman is a metabolic scientist (PhD). The clearest explanation of insulin resistance and why it may underlie so much modern disease, from a researcher who studies it. The best on the mechanism.
Best for: Understanding insulin resistance.
→ View on AmazonGood Energy by Casey Means
Casey Means is a physician (MD). A big-picture case that metabolic health underlies energy, mood and long-term disease, with practical steps. Accessible and motivating.
Best for: Metabolic health as the foundation.
→ View on AmazonMetabolical by Robert Lustig
Robert Lustig is a pediatric endocrinologist (MD). A forceful argument connecting processed food, sugar and metabolic disease, from a well-known (and pointed) physician. Provocative and passionate.
Best for: The case against sugar and processing.
→ View on AmazonPractical approaches
Glucose Revolution by Jessie Inchauspé
Jessie Inchauspé is a biochemist (MSc). Simple, everyday habits to flatten blood-sugar spikes, translated from real science into painless tweaks. Genuinely useful for anyone.
Best for: Everyday blood-sugar habits.
→ View on AmazonThe Obesity Code by Jason Fung
Jason Fung is a nephrologist (MD). The influential argument reframing weight as a hormonal (insulin) problem rather than simple calories and the case for fasting. Debated but pivotal.
Best for: Rethinking weight and insulin.
→ View on AmazonThe Diabetes Code by Jason Fung
Jason Fung is a nephrologist (MD). Applies the insulin-first argument specifically to preventing and reversing type 2 diabetes through diet. Hopeful and controversial.
Best for: Type 2 diabetes and diet.
→ View on AmazonHow we chose these
We hold to a simple rule: if we cannot verify an author's credential (MD, PhD, RD, DPT, PsyD, or licensed clinician) from a publisher or university bio in about two minutes, the book does not make the list, with clearly labeled exceptions for a few excellent journalist-authored titles. No cure-all claims, no anti-science, no wellness influencers. We describe and compare these books to help you choose; we do not reproduce their contents.
Please note: these are books, not medical advice. Everyone's health is different. For your specific situation, talk to your doctor before acting on anything you read.
