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Fermented Dairy Foods: Impact on Intestinal Microbiota and Health-Linked Biomarkers
S González1,2, T Fernández-Navarro1,2, S Arboleya2,3
1Area of Physiology, Department of Functional Biology, Faculty of Medicine. University of Oviedo, Oviedo, Spain.
Frontiers in Microbiology
|June 14, 2019
Summary
Consuming natural yogurt may boost beneficial gut bacteria like Akkermansia and reduce inflammation markers. Sweetened yogurt intake was linked to lower levels of Bacteroides in healthy adults.
Area of Science:
- Microbiology
- Nutrition Science
- Gastroenterology
Background:
- Fermented foods, particularly dairy, are increasingly recognized for health benefits, including obesity prevention and reduced risk of metabolic and immune disorders.
- These benefits are attributed to the provision of essential nutrients and beneficial microorganisms.
- Understanding the impact of fermented dairy on gut microbiota and host health is crucial.
Purpose of the Study:
- To investigate the relationship between fermented dairy product consumption and the intestinal microbiota composition.
- To assess the effects on serum lipid profiles and markers of oxidative stress and inflammation.
- To explore potential correlations between specific fermented dairy types and health indicators.
Main Methods:
- A study involving 130 healthy adults assessed dietary fermented food intake using a food frequency questionnaire.
- Intestinal microbiota composition was analyzed using quantitative polymerase chain reaction (qPCR).
- Fecal short-chain fatty acids, serum lipids, glucose, malondialdehyde (MDA), C-reactive protein (CRP), and leptin were measured.
Main Results:
- Natural yogurt consumption was associated with increased fecal levels of the bacterium *Akkermansia*.
- Intake of sweetened yogurt correlated with lower levels of *Bacteroides* in the gut microbiota.
- Serum C-reactive protein (CRP) levels were significantly reduced in individuals consuming yogurt.
Conclusions:
- The findings highlight the potential health benefits of specific fermented dairy products, such as natural yogurt.
- Different types of yogurt may exert distinct effects on the gut microbiota composition.
- Further research is warranted to elucidate the mechanisms underlying these effects and the role of the microbiota.
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