Effect of Proteobacteria in Different Diets and Composition in Individuals

Abstract

Proteobacteria, a phylum of gram-negative bacteria, are integral to the gut microbiome and can influence host health depending on their abundance and composition. This study explores the relationship between dietary patterns and the composition of Proteobacteria in individuals. Diets high in fats and sugars, such as the Western diet, are associated with an increased abundance of Proteobacteria, potentially promoting gut inflammation and metabolic disorders. In contrast, Mediterranean and high-fibre diets, rich in plant-based nutrients, correlate with reduced Proteobacteria levels and improved microbial diversity. Vegan diets, characterized by high fibre and plant polysaccharides, indirectly modulate Proteobacteria through increased colonization of beneficial taxa. Ketogenic diets exhibit variable effects, influenced by the composition of macronutrients and fat sources. These findings emphasize the dual role of Proteobacteria in health and disease, shaped by dietary intake, and highlight the potential of dietary strategies in managing microbiome-associated disorders.

DOI - https://doi.org/10.65525/SVUP.9788198800428.2025.97-103