Diet and gut microbiota: how what you eat shapes your gut health

By Dr. Sushama R. Chaphalkar, PhD.May 13 2024Reviewed by Susha Cheriyedath, M.Sc. In a recent systematic review published in the journal Gut Microbes, researchers synthesized evidence from systematic reviews and primary studies to explore the relationship between diet and gut microbiota. They found that diet patterns, micro- and macronutrients, bioactive compounds, and food additives influence gut microbiota.

About the study The review systematically searched PubMed for systematic reviews on diet and gut microbiome associations in healthy individuals and those with gastrointestinal conditions. Primary studies were distinguished from systematic reviews and reference lists of narrative reviews. Data, including the study design, dietary assessment, and analysis methods, were extracted.

Higher protein intake was associated with less beneficial bacterial profiles, while studies on dietary gluten intake showed inconsistent findings. Limited research explored the impact of individual amino acids on microbiota, with some studies reporting specific associations such as reduced Firmicutes:Bacteroidetes ratio following L-glutamine supplementation.

Related StoriesPolyphenols, including those found in foods like tea and fruits, were associated with increased beneficial bacteria like Bifidobacteria and Lactobacillus and bacteria that produce butyrate, improving gut integrity. Polyphenols also inhibited the growth of pathogenic bacteria like Clostridia and Salmonella.

Source: Healthcare Press (healthcarepress.net)

Bacteria Clostridium Food Food Additives Gene Gene Sequencing Lactobacillus Metabolism Micro Microbiome Nutrients Research

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