The Marathon Endurance Study
Four weeks of probiotic supplementation reduces GI symptoms during a marathon race
This study was designed to evaluate the effects of probiotic supplementation on gastrointestinal (GI) symptoms, circulatory markers of GI permeability, damage, and markers of immune response during a marathon race.
The marathon runners taking Lab4 probiotics experienced fewer and less severe gut symptoms during their training period and marathon race.
The reduction in gut symptoms was associated with maintaining running speed during the latter stages of the race.
This randomised, double-blind, placebo-controlled study aimed to assess the effect of Lab4 probiotic supplementation on gut symptoms, race time, intestinal permeability and immunological markers during marathon training and racing.
Gut symptoms during 28-day supplementation period
Gut symptoms during the marathon race
Lab4 probiotics supplementation protects endurance runners from gut disturbances during a marathon race and may help to maintain running pace during the latter stages of racing.