Nutrition Disorders
Conditions
Keywords
Biomarkers of food intake
Brief summary
This cross-over meal study is a four-way intervention with 12 volunteers randomized at the same time to four meals with fried meats (beef, pork, chicken and amino-acid matched non-meat control) and to four meals with potato products (boiled, chips, fries, and a control with boiled white rice) to search for biomarkers of intake.
Detailed description
In a two-dimensional, cross-over meal study, 12 healthy volunteers consumed in a randomized sequence four test meals: chicken, pork, beef, and a control made of egg white and pea. At the same time they were independently randomized to four starchy foods to be consumed together with the meats: boiled potatoes, fried potatoes, potato crisps or boiled white rice. Fasting and postprandial urine samples were collected to cover 48 h after each meal and samples were profiled by untargeted LC-ESI-qTOF-MS metabolomics. The profiles following the meal challenges were explored by univariate and multivariate analyses and single and combined markers of intake identified chemically by MS/MS fragmentation experiments and statistically by ROC curves and error rates as well as FDR statistics.
Interventions
Randomised sequence of pork, beef, chicken meat, and an egg white/pea combination
Randomised sequence of boiled potato, fried potato, potato crisps, and boiled white rice
Sponsors
Study design
Masking description
It is not possible to mask foods and for the explorative analysis of results, masking is not required.
Intervention model description
Subjects were randomised to four meals with meats and starchy foods in such a way that all volunteers had each meat and each starchy food once and so that all combinations of meats and starchy foods were equally common. Each volunteer was also randomised to the sequence of the meals.
Eligibility
Inclusion criteria
* healthy
Exclusion criteria
* non-pregnant, no abuse of alcohol or drugs, no chronic medication except p-pills
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| meat intake biomarkers | 0-48 hours | To identify intake biomarkers of general meat, red meat and poultry |
| Potato intake biomarkers | 0-48 hours | To identify intake biomarkers of general potato, fried potato and white rice |
Countries
Denmark