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Clinical Trial Summary

Assessment of dietary intake is key for understanding the links between diet and health. Here, researchers will study molecules in urine samples to give them an insight into what people have eaten. These new molecules are called dietary biomarkers. This study will help to identify new molecules that can act as biomarkers of commonly consumed foods. These can then be used in the assessment of diet, identification of diet-related diseases and used how to explain how a dietary intervention (programme) will work, thereby adding to scientific knowledge.


Clinical Trial Description

For biomarker discovery a cross-over study where participants will visit the Human Intervention Centre (in UCD) on 3 occasions (3 study days) with a minimum one week between each visit. The order of consumption of the test foods will be randomized. The test foods are mixed vegetables (spinach and lettuce), green beans and mixed berried (strawberries and blueberries). For each study day, the participants will arrive fasting and provide a urine sample (0h sample). For 24h prior to the study day participants will avoid the test foods. Participants will consume the food and urine samples will be taken at 2, 4, 6 and 24 h post consumption . Standard portions of the test food will be eaten on each occasion. Between the visits, participants will consume their habitual diet. The samples will be analysed using the metabolomics platforms LC-MS and NMR spectroscopy. Both NMR and LC-MS data generated will undergo statistical analysis such as principal component analysis (PCA) and supervised analysis such as partial least squares-discriminant analysis (PLS-DA). Validation of such models will be performed using permutation testing. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03855098
Study type Interventional
Source University College Dublin
Contact
Status Completed
Phase N/A
Start date September 1, 2019
Completion date December 20, 2020

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