Probiotic supplementation reduces the duration and incidence of infections but not severity in elite rugby union players

Oral administration of the probiotic<i>Lactobacillus fermentum</i>VRI-003 and mucosal immunity in endurance athletes

Amanda J. Cox, David B. Pyne, P. Saunders et al. · British Journal of Sports Medicine · 2008 · 229 citations · Full text

Daily Probiotic’s (Lactobacillus casei Shirota) Reduction of Infection Incidence in Athletes

Michael Gleeson, Nicolette C. Bishop, Marta Oliveira et al. · International Journal of Sport Nutrition and Exercise Metabolism · 2011 · 229 citations · Full text

Probiotic bacteria reduced duration and severity but not the incidence of common cold episodes in a double blind, randomized, controlled trial

Michael de Vrese, Petra Winkler, Peter Rautenberg et al. · Vaccine · 2006 · 201 citations

Probiotic, Common Cold Episodes, Antimicrobial Susceptibility +8

Lactobacillus fermentum (PCC®) supplementation and gastrointestinal and respiratory-tract illness symptoms: a randomised control trial in athletes

Nicholas P. West, David B. Pyne, Allan W. Cripps et al. · Nutrition Journal · 2011 · 177 citations · Full text

The Effect of Probiotics on Respiratory Infections and Gastrointestinal Symptoms during Training in Marathon Runners

Riina A. Kekkonen, Tommi Vasankari, Timo Vuorimaa et al. · International Journal of Sport Nutrition and Exercise Metabolism · 2007 · 167 citations