Adherence to WHO ethical guidelines for nutritional interventions during covid-19: a systematic review

The present study aims to review whether the nutritional interventions applied during Covid-19 were consistent with the ethical guidelines suggested by the World Health Organization (WHO). Literature search of relevant databases included those published prior to 12th February, 2022. Ethical considerations were assessed against the criteria recommended by the WHO, as well as two further criteria. All ten studies included were approved by relevant research ethics committees. Half of the studies assessed potential risks and benefits, and four studies provided assurance for confidentiality of the data. A declaration of informed consent was not obtained in two studies. Community collaboration was not mentioned in one expected study. Safe selection of the participants was not ascertained in half of the studies. Conflict-of-interest statements were stated in all studies. In conclusion, only two studies appeared to fully comply with eight ethical criteria during the pandemic. Developing more practical guidelines in crisis situations is recommended.