methodologie methodology food frequency questionnaire
Conditions
Interventions
None listed
Sponsors
Wageningen Universiteit
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: Healthy volunteers aged between 25 and 65 years, apparently healthy.
Exclusion criteria
Exclusion criteria: Participants who are ill during one of the food record days, donate blood during the study period, use antibiotics containing sulphonamides, dieticians, and are employed at the Wageningen University department of Human Nutrition or those who are enrolled in other studies during the same period are excluded. Also those that suffer from one of the following diseases: diabetes, or renal failure and those who are oversensitive to sulphonamides are excluded. Women who are pregnant or lactating also can not participate in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Primary study parameters are correlation coefficients between FFQ and food diary for energy, protein, fatty acids, carbohydrates, fruit, vegetables and fibre. Next to that we will also calculate correlation coefficients between FFQ and biomarkers for protein, potassium and fatty acids. The height of these correlations provide insight in how valid the FFQ is for ranking participants according to differences in food intake. | — |
Secondary
| Measure | Time frame |
|---|---|
| An extra goal is to study the potential of sucrose/fructose as biomarker of carbohydrates and/or mono-disaccharides, showing possibly another pattern of overreporting or underreporting than for energy, fat and fruit and vegetables. | — |
Countries
Netherlands
Outcome results
None listed