Urolithin A is the main metabolite of ellagitannin-rich foods, such as pomegranates, black raspberries, raspberries, strawberries, walnuts and almonds. These polyphenol components are not absorbed intact into the bloodstream, but are hydrolyzed to ellagic acid in the gut, which is then metabolized by the gut microflora to form urolithin A and B. Research indicates that the ability to synthesize urolithins declines with age and depends on the gut microflora, and there is a small percentage of the population that is unable to perform this conversion at all. Research indicates that urolithin A enhances autophagy, the natural process of cellular renewal in which the body degrades and recycles cellular components, as well as mitophagy, the clearance and recycling of older and dysfunctional mitochondria. Efficient rejuvenation of mitochondria supports energy production and the overall health of cells. Supporting autophagy reduces oxidative stress and promotes healthy cytokine balance within the cells to support healthy aging. Preliminary research suggests a broad spectrum of support, including energy production, neuronal health and neurogenesis, gut barrier function, and healthy joint collagen. Urolithin A also may offer support for glucose and fat metabolism.*