Researchers from Chosun University and Seoul National University in South Korea reviewed decades of scientific literature and global health data and found no consistent evidence linking the consumption of genetically modified organisms (GMOs) to major human health problems.
Their analysis examined epidemiological studies and international health records to assess whether GMO exposure was associated with conditions such as cancer, allergies, or reproductive disorders, according to a press release.
The team analyzed research drawn from several scientific databases, applying strict selection criteria to identify the most relevant studies. They also assessed national health trends using time-trend and Joinpoint regression analyses to determine whether disease rates shifted after GMOs were introduced in different countries. In doing so, they compared the timing of GMO approvals with the incidence of major diseases across populations.
The results revealed no consistent pattern connecting GMO consumption with higher rates of cancer, reproductive toxicity, allergies, or other chronic illnesses. Although disease trends differed across countries and over time, those changes did not correspond with GMO authorization or adoption. Overall, the researchers concluded that the current epidemiological evidence does not support a causal link between GMO consumption and major risks to human health.
