Abstract
Probiotics are defined as ''live microorganisms which when administered in adequate amount confer a health benefit on the host''. Many clinical studies have been conducted to see the clinical and/or the prophylactic effects of probiotics for allergic diseases. One meta-analysis which appeared on the January issue of the Journal of Allergy and Clinical Immunology showed the conclusion ''Current evidence is more convincing for probiotics' efficacy in prevention than treatment of pediatric atopic dermatitis''. Further study is necessary to clarify what kind of probiotics should be used for allergic diseases.
