The 11th International meeting Probiotics Prebiotics & New Foods was held in Rome, at Università Urbaniana, from September 12th to 14th 2021. The congress has been attended by 570 people from 36 countries (Algiers, Argentina, Australia, Austria, Belgium, Bosnia – Herzegovina, Brazil, Canada, Denmark, Estonia, Finland, France, Germany, Greece, Ireland, Israel, Italy, Japan, Lithuania, Morocco, Netherlands, Poland, Portugal, UK, Romania, Russia, Saudi Arabia, Serbia, Singapore, Slovakia, Slovenia, Spain, Sweden, Swiss, Ukraine, USA).