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Clinical Trial Summary

The aim of this project is to elucidate how repeated exposure with omega-3 fatty acid supplementation for 6 weeks affect mean and individual fasting lipids and inflammatory responses and postprandial TG after a high fat meal with butter (50 g fat) in healthy subjects.


Clinical Trial Description

The investigators aim to perform a randomized controlled crossover trial where each participant will act as his or her own control. Participants will be randomized to either start to receive fish oil (the omega-3 fatty acid supplement, dose of 2.3 g Eicosapentaenoic acid fatty acids (EPA) + Docosahexaenoic acid fatty acids (DHA) /day) for 6 weeks or a high-oleic sunflower oil (HOSO) containing no omega-3 fatty acids, as control followed by a wash-out period of minimum 12 weeks, before the treatment is changed for 6 weeks. Before and after each intervention period we will take fasting blood samples and collect spot morning urine. At home, the participant will perform a voluntary postprandial meal test with 61 g butter (containing 50 g fat), use DBS to collect fasting (0 h) 2, 4, 6, and 8 h blood samples after intake of the meal to measure TG which has been validated previously. The investigators will use first part of the trial to define fasting and postprandial TG responders and non-responders. The investigators will also monitor at home the postprandial TG response to HOSO to see the participants' postprandial response to a control oil without omega-3 fatty acids. After a 12 week wash-out period, we will then repeat the fish oil intervention period once more for all in order to see if those we defined as responders continue to be defined in the same category in the repeated fish oil intervention (adaptive design). The investigators will collect exposure data, including dietary intake, physical activity, and clinical data such as BMI, body composition (such as fat mass, visceral fat, fat free mass), blood pressure, lipids and glucose and specific single nucleotide polymorphism (SNPs) to understand the impact of these factors on the individual postprandial TG response. In addition, the investigators will collect feces samples before taken before each meal test day for gut microbiota analysis. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05621083
Study type Interventional
Source University of Oslo
Contact Stine M Ulven, PhD
Phone +47 22840208
Email smulven@medisin.uio.no
Status Recruiting
Phase N/A
Start date April 11, 2023
Completion date December 2026

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