The standard advice to eat less and move more doesn’t work. We all know it, and the studies all show that it doesn't work. So, why shouldn't we use this tool that we have [fasting], which is honestly the most powerful weight loss tool? Because you cannot go lower than zero calories ... This is the most powerful tool, and we’ve decided to not use it? Are you kidding me? That's gotta be the craziest thing I’ve ever heard.