Received: 3 January 2019
Accepted: 27 August 2019
First Online: 16 October 2019
Compliance with ethical standard
: The authors declare that they have no conflict of interest. Author MGG has received a research grant from company Noos, who provided to the University free the probiotic used in the study. However, data belonged to the authors and by no means, the company interfered with the conduct of the study
: All procedure involving humans have been approved by the institutional ethics committee of the University of Brescia (protocol n 0059683 NP 1473) and have been performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.