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| Research Progress on the Impact of Meat-Based Diets on Gut Microbiota |
| LIU Huaiyu, ZHANG Longyi, WANG Aodong, ZHOU Lianggui, XIE Shuyao, ZU Junmei, LIN Yuzhu, ZHANG Yin |
| Meat Processing Key Laboratory of Sichuan Province, Chengdu University, Chengdu 610106, China |
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Abstract The gut microbiota is closely related to human health. It has been demonstrated that the gut microbiota plays a significant role in various physiological processes such as nutrient metabolism, immune regulation, and intestinal mucosal barrier maintenance. Dietary structure, particularly the intake of different types of meat, significantly affects gut microbiota composition and function. To systematically elucidate the relationship between meat-based foods and the gut microbiota, this paper reviews recent studies on the effects of commonly consumed types of meat (beef, pork, chicken and fish) on the gut microbiota based on the biological role it plays in obesity development and immune regulation. The intake of beef and pork increases the ratio of Firmicutes to Bacteroidetes (F/B) in the intestinal microflora in mammal (mice, rats and pigs) models and humans, up-regulates the abundance of Prevotell, Escherichia and Desulfovibrio in the mouse intestinal microbiota, and promotes intestinal colonization of Clostridium, Lachnospira and Ruminococcus in pigs and humans. In contrast, the intake of chicken and fish decreases F/B ratio and increases the abundance of Lactobacillus and Faecalibacterium. In conclusion, the effects of different meat types on the structure of gut microbiota shows cross-species conservation, which will provide a theoretical basis for future research on dietary interventions and gut microbiota modulation.
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2026, Vol. 40 
