Personalized nutrition utilizing genetic testing has expanded consumer access to customized dietary recommendations, but this approach introduces distinct food safety considerations that differ from conventional nutrition guidance. As direct-to-consumer genetic testing grows annually by 11.6%, regulatory and scientific communities are examining potential risks associated with gene-based dietary advice.

Scientific Validity Concerns

The predictive value of nutrigenomic tests varies significantly across genes and conditions. While certain gene-nutrient interactions like MTHFR variants affecting folate metabolism have stronger scientific backing, many commercial tests analyze genes with insufficient clinical evidence for dietary applications. The field faces challenges in establishing standa

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