• Indication
• Pros and cons
• Practical considerations
• Resources required
• References
• Examples and links

• Dietary assessment
• Methods
• Duplicate Diets
• Pros and cons

Pros and cons

Pros

• The method provides accurate nutrient intake data which is not subject to the errors inherent in data processing including the limitations of food composition data
• It is an objective measure of dietary assessment

Cons

• The method is expensive
• It imposes a high individual burden
• Individuals must be literate, numerate and highly motivated
• Unsuitable for large-scale studies
• It is unlikely to capture habitual diet unless adequate days are assessed, but even then there is a high chance of this method altering food intake to ease the burden
• Relies on the respondent providing a complete duplicate of consumption

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