Received: 13 April 2021
Accepted: 14 August 2021
First Online: 1 October 2021
: This research project was approved by the ethical committee and Research Council of National Nutrition and Food Technology Research Institute (ECRC-NNFTRI) in accordance with the guidelines of Iranian Ministry of Health and Medical Education (approval number: IR.SBMU.nnftri. Rec.1393.053556). Informed written consent was sought from all participants to be interviewed, for the interviews to be audio recorded and used for research purposes and publication. The participants ensured anonymity and confidentiality of their responses. The study protocol was approved.
: Not applicable.
: The authors declare that they have no competing interest.