Evidence supporting the use of: Bacteria
For the health condition: Endurance (lack of)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Bacteria, particularly specific strains of probiotics, have garnered scientific interest for their potential in supporting physical endurance. Several animal and human studies have suggested that certain probiotic strains, such as Lactobacillus and Bifidobacterium, may enhance exercise performance and reduce fatigue. The proposed mechanisms include modulation of gut microbiota, reduction of systemic inflammation, improved barrier function, and enhanced nutrient absorption. For example, a 2019 randomized controlled trial published in "Nutrients" found that supplementation with Lactobacillus plantarum TWK10 improved endurance running time in healthy adults. Animal studies have also demonstrated increased muscle glycogen and reduced markers of muscle damage following probiotic supplementation.

Despite these promising findings, the body of evidence is still relatively limited, with small sample sizes and a need for more rigorous, large-scale human trials. The beneficial effects also appear to be strain-specific, and not all probiotics have shown positive results. There is currently no widespread traditional use of bacteria or probiotics specifically for endurance enhancement, making the evidence base primarily scientific and relatively new. In summary, while there is emerging scientific support for the use of certain bacteria to improve endurance, the evidence is moderate and more research is needed to confirm efficacy and determine optimal strains and dosages.

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