Probiotics Keep Colds, Flu at Bay

HOERSHOLM, DenmarkSupplementing a diet with probiotics may boost the immune system and help ward off common infections such as colds and flu, according to a new study presented Oct. 28 at the 2nd World Congress on Immunity Ingredients, Malta.

The study, sponsored by Chr. Hansen and conducted in cooperation with Luigi Sacco Hospital, Milan, Italy, and the University of Milan, documented supplementation with either BB-12® or L. casei 431® may improve the bodys resistance to common infections. The results showed the antibody responses were significantly increased in both probiotic groups compared to placebo after a challenge of the immune system.

These results offer strong evidence that the functionality of the immune system can be improved by dietary supplementation with these probiotic strains. No drugs are available to improve the effects of vaccinations or to augment the level of immune mediated protection against infections. This can apparently be achieved with dietary supplementations," concluded study co-investigator Prof. Mario Clerici, director, Department of Biomedical Science and Technology, University of Milan.

This study, which is part of our comprehensive clinical study program, documents supplementation with our probiotics induces multiple and complimentary parts of the immune system. This is promising," said Chr. Hansens Birgit Michelsen, director of scientific affairs, Health & Nutrition Division. The outcomes of this study, as well as data from previous studies on BB-12 and L. casei 431, show supplementation with these probiotic strains result in a strengthening of various parts of the immune system. This will very likely translate into a clinical benefit, such as reduced rates of infection. However, studies designed specifically to assess infections are needed to determine this."

Food manufacturers as well as dietary supplements producers observe an increasing consumer interest in probiotics with credible, scientifically documented health benefits," said Lars Bredmose, marketing director, Probiotic Cultures, Chr. Hansen. We are continuously striving to support this positive consumer trend by substantiating our offering with clinical studies of the highest standard."

The study investigated the impact of Chr. Hansens probiotic strains BB-12 and L. casei 431 on the functional capacity of the immune system by measuring specific antibody responses to an influenza vaccination. Antibody responses in such a vaccination model have been identified by experts as being the best marker currently available to evaluate the human immune response. The study was managed by Sprim Italy and included 211 healthy adults.