Genetically modified foods (GMF) have long been discussed as one of the potential means to bring about our urgently needed agricultural transformation. However, even as long, the public in Europe and Northern America has rejected GMF. Motivated by this ongoing polarisation about GMF, we conducted a systematic review on factors that impact GMF perceptions and attitudes. Adding to previous reviews on GMF attitude, such as Frewer et al. (2013), we are particularly interested in how differences in attitudes between the Global North and Global South (GS) unfold. With that, we also contribute to overcoming a bias that we noted: the majority of studies on this topic has been conducted in the Global North. Moreover, because recent research on moral evolution shows how vital morality is for attitude formation, we are particularly interested in the role of moral beliefs in forming attitudes on GMF. Our study followed the PRISMA guidelines for systematic reviews. A total of 55 papers were included in the review, 45 of those from the initial search, and 10 from the additional search, specifically focusing on the GS. Our results show a heterogenous dynamic behind the prediction of attitude. Interestingly, morality is shown to be an important factor. Specifically, we find that moral concerns, for example of fairness, world views, religion, play a prominent role in GMF attitudes. Thus, when designing policies and improving science communication about GMF, moral benefits of the technology need more consideration and should be sensibly addressed. Furthermore, and perhaps most importantly, the population in the GS should be given greater consideration in issues that affect the whole world. Related to GMF attitude and perception, our analysis shows that they bring a different perspective, as well as different needs, to the discussion.
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