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

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

There is emerging scientific evidence suggesting that probiotics may support endurance, primarily through their effects on gut health, inflammation, and immune modulation. Several small-scale human and animal studies have investigated the impact of probiotic supplementation on physical performance, particularly in endurance athletes. Some randomized controlled trials have shown that certain probiotic strains (such as Lactobacillus and Bifidobacterium) can help reduce the incidence and severity of gastrointestinal symptoms during endurance exercise, enhance recovery, and possibly improve time to fatigue. The hypothesized mechanisms include improved gut barrier function, reduced inflammation, enhanced nutrient absorption, and modulation of the gut-muscle axis. For example, a 2019 study in Frontiers in Microbiology reported improved running time to fatigue in trained athletes who supplemented with a multi-strain probiotic. However, the overall evidence remains preliminary, with small sample sizes, short durations, and a lack of consistency in strains and dosages. There is insufficient large-scale or long-term data to conclusively endorse probiotics as an ergogenic aid for endurance. Thus, while the use of probiotics for supporting endurance is rooted in scientific investigation rather than tradition, the strength of evidence is modest at present.

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Products containing Probiotics

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