Evidence supporting the use of: Lactobacillus gasseri
For the health condition: Allergies (food)

Links: Go back one page, Tool main page, Ingredients list, Health conditions list, Body systems list

Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Lactobacillus gasseri is a probiotic bacterium that has been investigated for its potential to modulate immune responses, including in the context of food allergies. The rationale for its use is based on the hypothesis that probiotics can help restore balance to the gut microbiota, which may have a role in allergic diseases. Some small-scale animal studies and preliminary human trials suggest that L. gasseri may reduce allergic responses by enhancing regulatory T cell activity, modulating cytokine profiles, and strengthening the intestinal barrier. For example, a few randomized controlled trials (RCTs) in children with atopic dermatitis (a skin manifestation often linked to food allergies) have reported modest improvements with L. gasseri supplementation, such as reduced eczema severity. However, the evidence is still limited and inconsistent. Most clinical trials to date have small sample sizes, short durations, and often combine L. gasseri with other probiotic strains, making it difficult to attribute benefits specifically to L. gasseri. There is a lack of large, high-quality RCTs directly assessing its effect on food allergy diagnosis or severe allergic reactions. Current clinical guidelines do not recommend L. gasseri as a primary treatment for food allergies, but research remains ongoing. In summary, while there is preliminary scientific interest and some early evidence supporting the immunomodulatory effects of L. gasseri, the overall quality and quantity of evidence remain low, and its use for food allergies is not yet firmly established.

More about lactobacillus gasseri
More about Allergies (food)