Table 1.

Data from animal models of food allergies.

Food	Study	Probiotic	Findings
Cow’s milk	Jiang et al. [36]	L. plantarum HM-22	Increased serum levels of IL-10, IFN-γ, and TGF-β; Reduced serum levels of total IgE and IL-4; Reduced gut permeability (increased expression of occludin and claudin-1 in the colon).
	Ni et al. Li et al. [37,38]	L. acidophilus KLDS 1.0738	Suppression of the TLR4/NF-kB signaling pathway
	Fu et al. [39]	L. plantarum ZDY2013 and L. rhamnosus GG (LGG)	Reduced serum levels of total IgE; Promoted Th1 differentiation, inhibiting Th2 responses; Improved gut barrier function.
Egg	Santos et al. [40]	B. longum 51A	Reduced serum levels of total IgE, gut permeability, proximal jejunal damage, eosinophil and neutrophil recruitment, and levels of eotaxin-1, CXCL1/KC, IL-4, IL-5, IL-6, IL-13, and TNF; Increased serum levels of IL-10.
	Miranda et al. [41]	A. muciniphila BAA-835
	Parrish et al. [42]	A. muciniphila	The presence of A. muciniphila in the microbiota, combined with fiber deprivation, led to stronger anti-commensal IgE coating and innate type 2 immune responses. This worsened food allergy symptoms in animal models of OVA and peanut allergy.
	Duan et al. [43]	L. plantarum JC7	Reduced plasma histamine levels, OVA-specific IgE serum levels, shift in Th1/Th2 immune response, and Treg/Th17 imbalance.
	Miranda et al. [44]	Saccharomyces cerevisiae UFMG A-905	Reduced tissue damage, myeloperoxidase activity levels, and IL-17 serum levels.
Shellfish	Fu et al. [45]	Bacillus coagulans 09.712	Improved gut barrier function; Suppression of the pro-inflammatory Th17 response.
	Fu et al. [46]	L. casei Zhang	Attenuated allergy symptoms and gut epithelial damage; Favoring a tolerogenic pattern through the activation of the NF-κB signaling pathway.
	Fu et al. [47]	B. infantis	Attenuated allergy symptoms; Induction of Tregs.