A probiotic capsule for gut microbiome stability during long-haul travel in elite football players

You may qualify if

• Male professional footballers who are involved in regular training during the pre-season period.
• Generally healthy, with no acute or chronic illnesses that could interfere with the study intervention or outcomes.
• Not currently consuming probiotics, prebiotics, or antibiotics within 4 weeks prior to enrolment.
• Willing to refrain from starting any new dietary supplements or probiotics during the study period.
• Able and willing to provide written informed consent.

You can't join if

• History of gastrointestinal disorders (e.g., Crohn's disease, ulcerative colitis, irritable bowel syndrome) or chronic diseases that could interfere with probiotic metabolism or study outcomes.
• Acute illness (e.g., infection) within 2 weeks prior to enrollment.
• Known allergy or hypersensitivity to components of the probiotic or placebo. - - - Use of antibiotics, probiotics, prebiotics, or synbiotics within 4 weeks prior to study start.
• Use of immunosuppressive medications or other supplements likely to impact gut microbiota.
• Regular use of alcohol or drugs at levels that could interfere with study participation or outcomes.
• Participation in another clinical trial within the past 3 months.
• Any injury or medical condition that limits participation in full training or matches during the study period.