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Article History

Received: 15 February 2021

Revised: 10 June 2021

Accepted: 22 June 2021

First Online: 1 July 2021

Competing interests

: The authors declare no competing interests.

: The study was conducted according to the guidelines of the Declaration of Helsinki. Ethical review and approval were waived for this study, since the anonymous nature of the web survey does not allow the tracing of sensitive personal data. Participants were fully informed about the study requirements and had to agree to the data sharing and privacy policy before participating in the study. The study was not a clinical trial on drugs, supplements or foods, but a survey of the population’s habits. All the participants gave their consent to the data treatment at the beginning of the web survey. If any participant did not give his/her consent, the web survey automatically stopped.

: Informed consent was obtained from all subjects involved in the study.