What it does: L. reuteri supports the balance of gut microbiota by producing substances that inhibit harmful bacteria and encourage beneficial strains, which is associated with digestive comfort and normal immune response.
How it is used: It is commonly taken to help maintain regular digestion, reduce occasional gastrointestinal upset, and support the body's defenses during or after periods of gut stress, such as antibiotic use or illness.
Natural sources and supplement forms: Although L. reuteri is a normal part of the human gut, it is not abundant in most fermented foods. Supplements use cultivated strains delivered in capsules, chewable tablets, or powders.
Why it appears in supplement formulas: Brands use L. reuteri to help restore gut microbial balance and support digestive and immune functions, especially when gut flora has been disrupted.
What to know before use: L. reuteri is generally well tolerated, but those with serious immune conditions should seek medical advice before taking live probiotics.
Interesting Fact
Lactobacillus Reuteri Naturally Lives in the Human Gut
Lactobacillus reuteri is a type of probiotic bacteria that naturally inhabits the digestive tracts of humans and other mammals. It was originally discovered in the 1960s and is still found in the microbiome of healthy people today. This probiotic is often added to supplements because it can withstand stomach acid and reach the intestines, where it plays a role in maintaining a balanced gut environment.
