What health concern is commonly associated with genetically modified crops?

Genetically modified (GM) crops are often associated with health concerns, and one of the most notable issues is the potential for allergic reactions. The process of genetic modification can introduce new proteins into crops that may not have existed before or might alter existing proteins, which may lead to the development of allergies in sensitive individuals. When a protein from a GM plant does not match well with a person's immune system, it can result in allergic responses.

This concern is particularly relevant in discussions about GM foods because it raises questions about the long-term effects on human health, especially for consumers who may be exposed to these novel proteins without adequate testing. Given these factors, the association between genetically modified crops and allergies highlights the importance of rigorous safety assessments before such crops are approved for public consumption.

Other health concerns like weight gain, increased fertility, or skin irritation are less commonly linked to genetically modified crops in scientific literature and regulatory assessments, making allergies a more prominent issue in this context.