consequences of unintended changes in GM foods, such as better tools for toxicology assessment and a more robust knowledge base regarding which components impact health.

5. Given the possibility that foods with unintended changes could enter the marketplace, there is a need to enhance our capacity for postmarket surveillance of exposure and effects.

1. Targeted analysis of selected nutrients in animal products should be performed on a case-by-case basis.

2. Standardized sampling methodology, validation, and performance-based analyses should be performed for targeted analyses.

3. Standardized methodology, validation, and performance-based analyses should be performed for profiling analyses.

4. Publicly available compound identification databases should be developed that contain information such as mass spectra and nuclear magnetic resonance spectra where appropriate.

1. Publicly accessible databases should also be developed for compound profiles of animal-derived foods (see also Research Recommendations in Chapter 7 of the main report).

1. Animal identity and identity preservation systems should be improved for tracking animals and animal products through the food chain.

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