Lactobacillus Reuteri

🦠 What Is Lactobacillus Reuteri?

Lactobacillus reuteri is a naturally occurring probiotic found in the gut, oral cavity, and breast milk. It supports digestive balance, immune function, and may influence inflammation and microbial harmony within the body. Some individuals may experience lower levels of this strain or difficulty maintaining it.

🤔 Why Might My Levels of Lactobacillus Reuteri Be Low?

Lower levels of L. reuteri do not indicate a medical deficiency—rather, they suggest that your internal environment or past exposure may not favor this particular strain. Influencing factors may include:

• Limited dietary exposure – L. reuteri is not widely present in most foods unless specifically added.

• Antibiotic history – Antibiotics may temporarily reduce various microbes, including L. reuteri.

• Microbial imbalance – An internal environment dominated by other strains may leave less room for L. reuteri.

• Stress or age-related shifts – Natural changes may influence the presence of certain probiotics over time.

• Early-life exposure – Levels of L. reuteri may differ depending on infant feeding, as it is commonly found in breast milk.

These factors relate to microbial balance, not medical diagnosis.

🛠️ What Could I Do About It?

💊 Choose a probiotic supplement containing Lactobacillus reuteri—look for clearly listed strains.
🥑 Increase prebiotic foods—garlic, bananas, oats, leeks, and asparagus help nourish beneficial microbes.
🥛 Select fermented foods that specifically indicate L. reuteri when available.
🚫 Reduce high-sugar and heavily processed foods to support a balanced internal environment.
💧 Focus on consistent daily gut-support habits—hydration, regular meals, and fiber.

💊 Which Supplements May Support Low Lactobacillus Reuteri Levels?

• Targeted probiotics containing L. reuteri strains (e.g., DSM 17938, PTA 6475).

• Prebiotic fibers such as inulin or FOS to encourage growth of supportive bacteria.

• Multi-strain probiotics offering a broader microbial variety.

• Fermented food concentrates or powders that include L. reuteri.

🌟 Why Might Lactobacillus Reuteri Be Low While Other Probiotics Are Present?

• Different growth preferences – Your internal environment may favor other strains more easily.

• Limited external sources – L. reuteri is less common in foods compared to other probiotics.

• Microbial competition – Other microbes may outcompete L. reuteri for space or nutrients.

• Strain resilience differences – Some strains colonize more efficiently than L. reuteri.

• Exposure history – Lack of consistent contact with L. reuteri may lead to naturally lower levels.

🍽️ Foods to Consider Limiting While Supporting Lactobacillus Reuteri

• High-sugar snacks or beverages

• Processed and packaged foods

• Fried or heavy meals

• Dairy products with artificial additives

🍽️ Foods That May Support Lactobacillus Reuteri

• Fermented foods such as yogurt, sauerkraut, kimchi, and kefir (if tolerated)

• Prebiotic-rich foods including onions, garlic, bananas, oats, and leeks

• Bone broth for general digestive support

• High-fiber vegetables like broccoli, leafy greens, and artichokes

• Polyphenol-rich foods such as berries, green tea, and dark chocolate