Supplementation With Probiotic May Help Improve Allergy Symptoms

A recent study has found that supplementation with the plant-derived probiotic Lactobacillus paracasei IJH-SONE68 may help improve symptoms of allergies including sneezing, itching eyes, and watery eyes.

56 adults with chronic allergies participated in the study. They were given 5 billion CFUs of Lactobacillus paracasei IJH-SONE68 or a placebo daily for 12 weeks. The researchers assessed allergy symptoms and serum immunoglobulin E levels at baseline, week 4, week 8, and week 12.

Participants in the probiotic group saw a significant decrease in allergy symptoms compared to the placebo group. Specifically, they saw a decrease in frequency of sneezing, watery eyes, frequency of nose blowing, and head dullness.

Participants in the probiotic group also saw a decrease in serum immunoglobulin E levels. High levels of immunoglobulin E can be a sign that the body is reacting to allergens.

The study was conducted by researchers from Hiroshima University. It was published online ahead of print on November 9, 2021 in the journal Nutrients.