Nutrition and a healthy lifestyle ensure the maintenance of a functional physiological microbiota.

Interactions between physical activity and gut microbiota play a role in systemic and intestinal health.

Sports activities, diet composition, and probiotic intake may all influence the gut microbiota, which subsequently contributes to physical performance in endurance training.

Irregular, exhausting, or long-lasting training has a negative impact on intestinal microbiota, and the subsequent dysbiosis may contribute, at least in part, to impaired immune response and general health conditions in athletes.