Influenza poses a significant public health risk due to how easily it spreads and the severity of complications it can cause; probiotics like Lactobacillus are considered safe and beneficial in managing influenza.
A study tested the effect of Limosilactobacillus reuteri KBL346, sourced from healthy South Koreans, on mice infected with influenza, showing that it helped reduce weight loss and speed up recovery.
Results indicated that both live and heat-inactivated L. reuteri KBL346 lowered inflammation in the lungs, improved survival rates, and positively altered the gut microbiome, suggesting it could be an effective probiotic against influenza.