The chinese experience in total diet studies

Abstract

The first TDS in China was started in 1990 and covered four geographical regions comprised of 12 of the most populous provinces. By 2013, seven TDSs had been conducted. The methodology of the Chinese TDS is a combination of the composite food group sample approach (48 regional composites) and the individual food sample approach (approximately 620 foods), but the Chinese TDS is gradually moving towards the individual food sample approach. The analytes originally included basic contaminants on the GEMS/Food Core List) and selected nutrients, but new and emerging chemical hazards have been added. The results of Chinese TDSs have provided valuable data for food contamination trend analysis, identified sources of high-level contamination, and assisted in food safety risk assessment and risk management, including regulatory decision-making. Examples of organophosphorus and organochlorine pesticides, as well as lead and cadmium are provided.