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Updated: May 14, 2026
04:46
'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
Published on: September 18, 2018
The Canadian total diet study design: 1992-1999
1Food Research Division, Bureau of Chemical Safety, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, ON, Canada. bob_dabeka@hc-sc.gc.ca
Summary
The Canadian Total Diet Study
Area of Science:
- Food safety and toxicology
- Environmental chemistry
- Public health nutrition
Background:
- The Canadian Total Diet Study (CTDS) monitors dietary exposure to chemicals.
- Previous phases established methodologies for food sampling and analysis.
- Understanding contaminant levels is crucial for public health risk assessment.
Purpose of the Study:
- To describe the design of the fourth phase of the CTDS (1992-1999).
- To outline the methodology for assessing dietary intake of specific chemicals.
- To provide data for evaluating population exposure and identifying trends.
Main Methods:
- Purchased food samples from eight Canadian cities.
- Prepared approximately 140 food composites for analysis.
- Analyzed composites for chlorinated dioxins/dibenzofurans, pesticides, PCBs, and trace elements.
- Combined analytical data with food consumption values to calculate dietary intakes.
Main Results:
- Established background concentrations for target chemicals in food composites.
- Calculated average dietary intakes for various age/sex groups.
- Determined the contribution of individual foods to overall dietary intake.
- Identified trends in human exposure to contaminants over time.
Conclusions:
- The CTDS design effectively provides data on chemical exposure through diet.
- Results inform public health policies and risk management strategies.
- The study design supports ongoing monitoring of dietary contaminant trends.
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