Imagine a single pill that can reduce the risk of insulin resistance, metabolic syndrome, diabetes, cardiovascular diseases, neurodegenerative diseases, some cancers, and even that can melt our bulging belly fat. More interestingly, the genie says this pill is free, costing us nothing. Would you buy it? I don’t know about you, but I will accept it immediately. It is not a dream. I did it in real life several decades ago. Why do I imagine fasting as a healing pill? It is because fasting allows the body to naturally heal itself by reducing visceral fat, balancing hormones, and activating autophagy. Emerging experimental and clinical studies show the benefits of fasting in lowering the risk of metabolic diseases.