Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2025
Fluoride-induced gut dysbiosis in metabolic disorders: Mechanisms and public health implications.
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Meenakshi Sarasa, Amrutha T V, Abubakar Md, Prakash Ved, Kumar Nitesh, Murti Krishna
Аннотация
AIM: This review explores the effects of fluoride exposure and metabolic alterations linked to obesity and diabetes, and highlights preventive and therapeutic approaches to mitigate fluoride-driven metabolic risks.
SUMMARY: While fluoride is beneficial to dental health, but excessive exposure disrupts gut microbiota composition, reducing short-chain fatty acids (SCFA) production and impairing intestinal barrier integrity. These disruptions alter the oxidative stress, inflammation and insulin resistance. Evidence from animal and human studies suggest a dose-dependent pattern, with depletion of beneficial bacteria such as Lactobacillus and Faecalibacterium and enrichment of pro-inflammatory microbes. Such microbial imbalances influence bile acid metabolism. lipopolysaccharide (LPS) translocation and glucose regulation. This review discusses potential microbiome modulating strategies include probiotics, prebiotics, synbiotics, fecal microbiota transplantation (FMT) and glucose lowering agents such as metformin and GLP-1 receptor agonists as possible therapeutic interventions to restore microbial balance and improve metabolic outcome However, the long-term and epigenetic effects of fluoride on intestinal and metabolic health remain unclear.
CONCLUSION: Since fluoride contaminates drinking water in areas with an endemic tendency, defluoridation, exposure monitoring, and public awareness are essential preventive strategies. Future mechanistic and clinical studies are necessary to elucidate the pathways linking fluoride metabolic disease progression.
SUMMARY: While fluoride is beneficial to dental health, but excessive exposure disrupts gut microbiota composition, reducing short-chain fatty acids (SCFA) production and impairing intestinal barrier integrity. These disruptions alter the oxidative stress, inflammation and insulin resistance. Evidence from animal and human studies suggest a dose-dependent pattern, with depletion of beneficial bacteria such as Lactobacillus and Faecalibacterium and enrichment of pro-inflammatory microbes. Such microbial imbalances influence bile acid metabolism. lipopolysaccharide (LPS) translocation and glucose regulation. This review discusses potential microbiome modulating strategies include probiotics, prebiotics, synbiotics, fecal microbiota transplantation (FMT) and glucose lowering agents such as metformin and GLP-1 receptor agonists as possible therapeutic interventions to restore microbial balance and improve metabolic outcome However, the long-term and epigenetic effects of fluoride on intestinal and metabolic health remain unclear.
CONCLUSION: Since fluoride contaminates drinking water in areas with an endemic tendency, defluoridation, exposure monitoring, and public awareness are essential preventive strategies. Future mechanistic and clinical studies are necessary to elucidate the pathways linking fluoride metabolic disease progression.