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Nutritional Metabolomics: the Search for Dietary Exposure Variables 2

Nutritional Metabolomics: the Search for Dietary Exposure Variables 2

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02039609
Enrollment
120
Registered
2014-01-17
Start date
2013-02-28
Completion date
2016-01-31
Last updated
2018-08-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Keywords

vegetarian, vegan, omnivore, Habitual diet

Brief summary

In the post-genomic era, a major challenge for health research is to understand the complex interactions among genetic, environmental and lifestyle factors including dietary intake. Unfortunately, such initiatives are hampered by the lack of accurate dietary intake assessment methods for large studies. The newly emerging field of metabolomics offers unique possibilities to characterize individual food intake, dietary patterns and effects of dietary intervention in large studies. The investigators propose to develop a platform to detect broad metabolomic responses to food intake in controlled trials as well as to use targeted metabolomics approaches to characterize dietary intake in longitudinal studies. Our laboratory has a long history of developing methodology for assessing nutritional status and effects of diet on metabolism. Here, the investigators team up with the Sahlgrenska Academy Core Facility and the Swedish NMR Centre at the University of Gothenburg, that offer modern metabolomics equipment and competence in bioinformatics, and use this in the context of nutrition research. To their knowledge, the investigators are among the first groups in the country to develop skills in metabolomics to assess dietary intake and effects of nutrition on metabolism, and probably the first to use two complementary platforms with both mass-spectrometry and nuclear magnetic spectroscopy. Hence, our methodological results should be useful to nutritional scientists nationally as well as internationally.

Interventions

None listed

Sponsors

Göteborg University
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

Healthy Body mass index 18.0-30.0, age 18-65 yrs

Exclusion criteria

Regular Medication or tobacco use Pregnancy or lactating

Design outcomes

Primary

MeasureTime frameDescription
Metabolomic patterns that reflect habitual dietFasting blood sample in the morning at one occasionLong-time vegans, vegetarians and omnivores will be asked to donate a fasting blood sample at one occasion, in the early morning. This blood sample will be analyzed, using nuclear magnetic resonance (NMR) and mass spectrometry (MS) techniques to reveal all metabolites. Patterns among these metabolites will be distinguished using the statistical techniques principal component analysis and discriminant analysis.

Secondary

MeasureTime frameDescription
Discriminating vegan-, vegetarian- and omnivorous diets by hair isotopic analysisHair samples in the morning at one occasionThe same study group also was asked to donate 5-10 hairs of 2 cm closest to the scalp. These were analyzed using isotope ratios of 15N and 13C by IRMS, to see if also this method could discriminate between the groups

Countries

Sweden

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 2, 2026