Lactobacillus gasseri is a species of bacteria that is marketed as a probiotic ("good" bacteria).

"Good" bacteria such as L. gasseri might help the body break down food, absorb nutrients, and fight off "bad" organisms that might cause diseases. These bacteria are sometimes added to fermented foods like yogurt and also found in dietary supplements.

L. gasseri is used for many different purposes, but there is no good scientific evidence to support its use.

Uses & Effectiveness ?

We currently have no information for LACTOBACILLUS GASSERI [FAST FACTS] overview.

Side Effects

When taken by mouth: Probiotics similar to Lactobacillus gasseri are possibly safe for most people when taken by mouth.

Special Precautions and Warnings

When taken by mouth: Probiotics similar to Lactobacillus gasseri are possibly safe for most people when taken by mouth.

Pregnancy and breast-feeding: There isn't enough reliable information to know if Lactobacillus gasseri is safe to use when pregnant or breast-feeding. Stay on the safe side and avoid use.

Interactions ?

    Moderate Interaction

    Be cautious with this combination

  • Antibiotic drugs interacts with LACTOBACILLUS GASSERI [FAST FACTS]

    Lactobacillus gasseri is a type of friendly bacteria. Antibiotics are used to reduce harmful bacteria in the body. Taking antibiotics along with L. gasseri can reduce the effects of L. gasseri. To avoid this interaction, take L. gasseri products at least 2 hours before or after antibiotics.


There isn't enough reliable information to know what an appropriate dose of Lactobacillus gasseri might be. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult a healthcare professional before using.
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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version.
© Therapeutic Research Faculty 2020.