"5-Day Fasting Diet Reduces Biological Age and Promotes Longevity, Studies Show"

A University of Southern California study suggests that a "fasting-mimicking" diet may reduce biological age by 11 years, based on blood markers and other measurements. The diet, which involves cycles of plant-based fasting, showed improvements in diabetes risk factors and a more youthful immune system. However, limitations include the use of biomarkers to measure age and lack of transparency about the diet's composition. While a dietitian acknowledges potential benefits such as weight management and blood sugar control, she warns against its restrictive nature and potential side effects like fatigue and weakness.