Jaiwant Rangi, MD, FACEEndocrinologist | Founder, Lower The Dose® | Speaker

The High Price of Sweetness: How Insulin Resistance Destroys the Vascular System

11 Jun 2026 · 1 min

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In this segment, Dr. Jaiwant Rangi explains that when cells become resistant to insulin—a condition driven by excess sugar intake, visceral fat accumulation, sedentary behavior, and chronic stress—the body compensates by producing more insulin, leading to hyperinsulinemia. Both insulin resistance and elevated insulin levels damage blood vessels by reducing nitric oxide (which maintains arterial flexibility), increasing inflammation and oxidative stress, and creating abnormal lipid patterns even when standard cholesterol measurements appear normal. This cascade links lifestyle factors to vascular dysfunction and heightened cardiovascular risk.

Chapters

When the cells become resistant to insulin, which happens with excess sugar intake or with visceral fat, inactivity, you know, more sedentary lifestyle, with stress, the body compensates by making more insulin. And that is a situation when we call it hyperinsulinemia. And high insulin and insulin resistance, they both cause damage of the blood vessels. They reduce the nitric oxide, which keeps the arteries flexible, increase inflammation and oxidative stress, and they create abnormal lipid patterns or the cholesterol, even if the cholesterol looks normal.