Does Fasting Slow Metabolism? What Science Really Says One of the most common fears around fasting is this question: does fasting slow metabolism? Many people avoid fasting because they believe it damages their metabolic rate permanently. But science shows a very different picture. Fasting doesn’t “break” metabolism; it temporarily changes how the body produces energy. Understanding... https://www.freedomfromdiabetes.org/blog/post/does-fasting-slow-down-metabolism/5109