1. Parkinson Institute, Azienda Socio Sanitaria Territoriale (ASST) Gaetano Pini‐CTO Milan Italy
2. Institute of Biomedical Technologies (IBT), Italian National Research Council (CNR) Milan Italy
3. IRCCS Istituto Auxologico Italiano, Obesity Research Laboratory Milan Italy
4. Department of Health SciencesSan Paolo Hospital Medical School, University of Milan Milan, Italy
5. Department of Parkinson Disease Rehabilitation, Moriggia‐Pelascini Hospital, Gravedona ed Uniti, Fondazione Europea Ricerca Biomedica (FERB) Gravedona Italy
6. Department of Psychiatry, Columbia University Medical Center, New York State Psychiatric Institute New York NY USA
7. Clinical Nutrition and Dietetics UnitFondazione IRCCS Policlinico San Matteo Pavia Italy