So metabolic flexibility is essentially your capacity to switch between those two fuel sources in a manner that is both efficient and effective for you. In layman's words, metabolic flexibility refers to your body's capacity to adapt and use whatever fuel is accessible. Thank you for taking the time to view. If you want to learn more about diet and exercise, as well as metabolic flexibility, visit metflexlife.com. Our podcast, Netflix and relax our diet and fitness plans, our newest blog entries, free recipes, and much more can be found there. https://fortyreviews.com/met-flex-diet-reviews/