How do good gut bacteria protect against harmful ones?

📢 New research alert!!

The gut microbiome consists of hundreds of different bacterial species and strains. One health benefit is that these bacteria can protect against the invasion of harmful bacteria.

But until now, there have been unanswered questions about how this works and whether some strains are more important than others.

A new study published in Science found that it was NOT any single bacterial strain that was protective but instead the combined effect of at least 50+ strains together.

Also, the WAY the collective bacterial communities protected against harmful invaders was by consuming nutrients those invaders might need.

The takeaway?

An optimal microbiome is a diverse microbiome.

Gut health is always something we look at as part of the bigger picture of our patient’s health.

Reference

Spragge F, Bakkeren E, Jahn MT, et al. Microbiome diversity protects against pathogens by nutrient blocking. Science. 2023;382(6676):eadj3502. [link]