Plant-rich diets feed the gut bacteria that calm digestive disease
Khial Y, Lathief S, Aliwi L, Alqashouti S, Mohamedahmed H
Gut Microbiome
The vegetables, legumes, and whole grains you grow or choose at the market aren't just food, they're fuel for a specific set of gut microbes shown here to protect the intestinal lining and dial down inflammation.
Scientists looked at how different eating styles affect the trillions of bacteria living in our gut, and how that connects to two common digestive illnesses. Diets built around vegetables, fruits, legumes, and olive oil, like the Mediterranean diet, fed the bacteria that produce helpful compounds and kept the gut lining strong, while diets full of processed food or heavy in meat and fat did the opposite and let harmful inflammation creep in.
Key Findings
Mediterranean and plant-based diets enriched short-chain fatty acid producing bacteria including Faecalibacterium prausnitzii, Roseburia, and Bifidobacterium, improving gut barrier function and clinical outcomes.
The Low FODMAP diet relieved IBS symptoms effectively but had only modest and inconsistent effects on overall microbial composition.
Western diets, ultra-processed foods, and ketogenic diets were linked to dysbiosis, loss of Akkermansia muciniphila, increased gut permeability, and pro-inflammatory cytokine profiles.
chevron_right Technical Summary
A review of gut health research finds that plant-heavy eating patterns like the Mediterranean diet consistently boost beneficial gut bacteria and calm inflammation, while diets high in processed foods and low in plant fiber worsen symptoms in people with IBS and IBD.
Abstract Preview
Original paper
Dietary patterns, gut microbiota, and gastrointestinal disorders: mechanistic insights into irritable bowel syndrome and inflammatory bowel disease.
The gut microbiota plays a central role in maintaining gastrointestinal (GI) health through its metabolic, immune-modulating, and barrier-supporting functions. Diet is among the most influential mo...
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