A longevity expert says you can extend your life span if you eat more carbs and less protein and fast every 3 months

Noted: Diets high in plant-based carbs and fats and low in meat and processed food may be best for longevity, according to the researchers, Valter Longo, a professor at the USC Leonard Davis School of Gerontology, and Rozalyn M. Anderson of the University of Wisconsin School of Medicine and Public Health.