Proteins of the future: a bibliometric study of alternative food acceptance

The present study aimed to evaluate the state of research linking alternative proteins with consumer attitude and behavior, through a bibliometric analysis of 265 documents indexed in Scopus. The methodology involved the identification of descriptive indicators such as temporal evolution of publications, journals, authors and most cited documents. A qualitative content analysis was also carried out to determine research designs, data sources and predominant analysis techniques. The results show an exponential growth of publications since 2018, with majority contributions from Europe and North America. In terms of methodological aspects, quantitative and empirical survey-based studies predominate. The literature linkage evidenced three streams: overcoming cultural barriers towards edible insects, factors predicting general acceptance of alternative proteins, and acceptance drivers specifically for plant-based meat substitutes. Future research opportunities include the need for more comparative studies across countries and population segments, experimentation with communication and packaging strategies, forms of gradual insertion into the diet, and analysis of microbial and fungal protein sources.