In food safety, the concept of substantial equivalence holds that the safety of a new food, particularly one that has been genetically modified (GM), may be assessed by comparing it with a similar traditional food that has proven safe in normal use over time.[1] It was first formulated as a food safety policy in 1993, by the Organisation for Economic Co-operation and Development (OECD).[2]
As part of a food safety testing process, substantial equivalence is the initial step, establishing toxicological and nutritional differences in the new food compared to a conventional counterpart—differences are analyzed and evaluated, and further testing may be conducted, leading to a final safety assessment.[3]
Substantial equivalence is the underlying principle in GM food safety assessment for a number of national and international agencies, including the Canadian Food Inspection Agency (CFIA), Japan's Ministry of Health, Labour and Welfare (MHLW), the US Food and Drug Administration (FDA), and the United Nations' Food and Agriculture Organization (FAO) and World Health Organization.[4]
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