Background: Krill oil (KO) has been suggested to have higher bioavailability of EPA and DHA compared with fish oil.There are limited reports on the postprandial effects of KO. This study investigates the impacts of supplementation with KO and fish oil (FO) on plasma lipid profiles in the postprandial state.
Methods: This is a randomised cross-over study.Test meals consisting fresh mashed-potato and 15g of olive oil (OO) and 5g of with three oil supplements (KO, FO or OO) were randomly provided on each study day with seven days wash-out period between.Blood samples were collected at the baseline and post consumption of test meal/supplement on hourly basis for 5 hours.Postprandial changes were assessed using SPSS.SPANOVA for repeated measure was performed to assess the changes between the treatments. One-way ANOVA and multiple comparisons using Tukey HSD post-hoc analysis were also performed to assess the changes in the parameters over time within the treatment group. P<0.05 was considered statistically different.
Results: There were no significant changes in the postprandial TAG levels in either chylomicron or plasma between the three oil treatments (P=0.783).However within the treatment groups, changes in TAG with time after oil consumption were significantly different (P<0.001) and the magnitude of changes varies in each treatment.
Conclusion: There were no significant difference in the absorption of TAG in chylomicron or plasma between FO and KO.Since KO contains n-3 fatty acids in phospholipids, n-3 profile in postprandial plasma phospholipid should be examined.
Funding source(s): College of Health and Biomedicine, Victoria University, Melbourne, Australia.