Insulin resistance is a key factor in obesity from "summary" of The Obesity Code by Dr. Jason Fung
Insulin resistance is a key player in the development of obesity. When we eat, our body releases insulin to help move glucose from the bloodstream into our cells for energy. However, when we consume too much sugar and refined carbohydrates, our insulin levels become chronically elevated. This constant bombardment of insulin causes our cells to become resistant to its effects. As a result, the body needs to produce even more insulin to get the same glucose-lowering response. This vicious cycle of high insulin levels and insulin resistance leads to weight gain and ultimately, obesity. Insulin is a fat-storage hormone. When insulin levels are high, our body is in storage mode, storing excess glucose as fat. This is why people with insulin resistance tend to gain weight more easily and struggle to lose it. Moreover, insulin resistance also affects our hunger and satiety signals. High insulin levels can disrupt the balance of hormones that regulate our appetite, leading to increased hunger and cravings for unhealthy, high-calorie foods. In addition, insulin resistance can slow down our metabolism, making it harder for us to burn calories efficiently. This further contributes to weight gain and difficulty in losing weight. Therefore, addressing insulin resistance is crucial in the treatment and prevention of obesity. By reducing our intake of sugar and refined carbohydrates, we can lower our insulin levels and improve our sensitivity to insulin. This, in turn, can help us achieve a healthy weight and reduce our risk of obesity-related health issues.
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