**2.4 The interpretation of Luigi Cornaro diet requires knowledge from multiple medical disciplines**

In the Bibliometrics analysis on Luigi Cornaro diet above, we have searched publications in different research areas of medical science, as shown in **Figure 4**. The extensive research on autophagy in the last 60 years helps us in understanding the biological process behind the simple Luigi Cornaro diet of Eat-but-Little. Autophagy itself is a multidisciplinary research topic. And the understanding of Luigi Cornaro diet also requires knowledge from gastroenterology, infectious diseases, food science and technology, psychology and so on.
