Cycles of a diet that mimics fasting appear to reduce signs of Alzheimer's in mice genetically engineered to develop the illness. The researchers found that mice that had undergone several cycles of the fasting-mimicking diet showed less Alzheimer's pathology. The researchers found lower levels of two major hallmarks of the disease: amyloid beta—the primary driver of plaque buildup in the brain—and hyperphosphorylated tau protein. They also found that brain inflammation lessened and better performance on cognitive tests compared to the mice that were fed a standard diet. The fasting-mimicking diet (FMD) is high in unsaturated fats and low in overall...