Longevity and youthful aging is thought to be improved with optimizing autophagy, the turnover and breakdown of older damaged cells in mitochondria and their rebuilding and replacement with newer better versions. When you eat carbohydrates, this raises insulin to such a degree that this suppresses autophagy throughout your entire body. There are countless other examples of the issues stemming from eating carbohydrates and elevating insulin past physiological levels. So how are carbohydrates 1) m