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ZOE Science & Nutrition

5 ways to control your blood sugar, reverse insulin resistance, and reduce your heart disease risk | Prof Rob Semple

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20 Aug 2026 · 55 min

Metabolism & fasting

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1 in 4 people have insulin resistance, which quietly raises your risk of heart disease and cancer, often without any change in your blood sugar. And most of those who have it have no idea. It can remain completely hidden for years, with no obvious symptoms and no warning signs… But it can be reversed. Today, Professor Rob Semple, a world-leading expert on insulin resistance, explains what insulin does in your body, why you need it to live, and what happens when it stops working properly. By the

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