Daily Probiotic's (Lactobacillus Casei Shirota) Reduction Of Infection Incidence In Athletes
| Effect | Increase |
| Values | About 50 mg/L higher salivary IgA in treatment group (approximate - read from graph). No difference in plasma IgA. |
| Trial Design | Randomized trial |
| Trial Length | 1-6 months |
| Number of Subjects | 84 |
| Sex | Both Genders |
| Age Range | 18-29, 30-44, 45-64 |
| Body Types | Trained |
84 endurance athletes were supplemented with _L. casei_ shirota (6.5 x 10^9^ CFU daily for 16 weeks) while training during the winter months. Most immunological parameters did not change except for salivary IgA levels, which increased after 8 weeks of supplementation.Funding issues for this study:
The supplemented athletes experienced a decreased risk of upper respiratory tract infection (URTI) symptoms. However, the severity and duration of symptoms, if displayed, did not differ as compared to placebo.
Funded by Yakult Honsha, a manufacturer of probiotic milk.
