Oral administration of L. plantarum NRIC0380 lyophilized powder was reported to suppress IgE production in β-lactoglobulin-immunized BALB/c mice [24] and the induction of regulatory T cell (CD4+CD25+Foxp3+; Treg) was involved in the anti-allergy activity [25]. Here, FOXP3 is linked to allergic disease.