The beneficial effects of Omega-3 and fish oil on the overall health are already known. Yet, a new study comes to emphasize that a diet rich in fish oil rather than conventional lard is much more beneficial for gut bacteria that aid with curbing inflammation and stopping weight gain.
The study was conducted on mice and aimed at spotting the differences that a fish oil rich diet could have on the metabolism of the rodents, compared to a diet rich in both unhealthy and healthy fats.
Led by Robert Caesar, University of Gothenburg, Sweden, the study aims to optimize the findings for application with humans. The gut bacteria was transferred from mice that had been fed exclusively with the fish oil rich diet to the second group that had been feeding on the fat rich diet.
Throughout the study, the caloric content of the two diets was identical. Also, dietary fiber was the same for both groups of mice. This strengthened the idea that the number of calories is less important than the nourishment source.
According to the lead author of the study, dietary fiber is a key source of energy for gut bacteria. Typically, this would result in the same type of gut bacteria for the two groups of mice. However, the composition of the samples collected differed drastically from one group to the other.
This is due to the fish oil, rich in probiotics that were found to have a great impact on reducing inflammation and curbing the risk of gaining weight. The mice who received the gut bacteria from those that had been fed a diet rich in fish oil showed these benefits comparatively more poignant than the others, which, receiving gut bacteria from the second group of mice, gained some weight during the study.
This finding underlines that a probiotic rich diet could be a key factor in fighting the harmful effects of a diet rich in fat, particularly unhealthy fats. Inflammation is thus kept in check by the gut bacteria resulted from a fish oil rich diet.
Particularly, two gut bacteria were found with the two groups of mice, after a 11-week long monitoring following their strict diet. The group that had been a fat rich diet presented higher percentages of Bilophila, a gut bacteria responsible for the boosting of gut inflammation and gain weight.
The group of mice that had been fed a fish oil rich diet presented a higher percentage of Akkermansia muciniphila, a gut bacteria responsible for glucose metabolism and keeping gut inflammation in check.
The study findings, published in the Cell Metabolism journal, could be used for further developments of that would lead to determining whether the Akkermansia muciniphila gut bacteria could become a probiotic strain fit for human use in a healthy diet curbing gain weight and gut inflammation.
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