Professor Luigi Fontana is a clinician scientist and expert on longevity. Credited with conducting the foundational research that gave rise to the 5:2 diet, he is currently the Leonard Ullmann Chair of Translational Metabolic Health and Director of Longevity Research at Sydney University. He was previously Professor of Medicine at Washington University

Professor Luigi Fontana, M.D., Ph.D. is a highly skilled medical clinician who is recognized as the leading world expert on longevity. He is a Professor of Medicine and Nutritional Sciences at the University of Brescia in Italy and was for many years Research Professor at Washington University, one of the four most highly regarded medical universities in the USA. Professor Fontana recently was invited to join the University of Sydney as Chair of Translational Metabolic Health. Credited with conducting the foundational research that gave rise to the 5:2 diet, Professor Fontana's revolutionary work is leading the world on longevity and the factors involved in living a long and healthy life.