Discover the science-backed benefits of intermittent fasting for longevity and weight loss in this ultimate guide by Dr. Sarah Mitchell. Learn the different fasting methods, how fasting promotes healthy aging through cellular repair, and practical tips to start safely. Whether you want to improve metabolic health or shed unwanted pounds, this article will walk you through everything you need to know—including FAQs and recommended support products to make your fasting journey effective and enjoyable.