Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Enterococcus species, particularly Enterococcus faecium, are used as probiotics in some dietary supplements, including those marketed for supporting the small intestine and overall digestive health. Scientific evidence supporting their use focuses on their ability to help maintain and restore gut microbial balance, especially in the context of antibiotic-associated diarrhea and some gastrointestinal disorders. Several randomized controlled trials have investigated the effects of Enterococcus faecium (often as part of multi-strain probiotic formulations) in reducing the incidence and duration of diarrhea, including in children and adults.

However, the evidence is mixed and tends to be stronger in the context of preventing or treating infectious or antibiotic-associated diarrhea rather than general "support" of small intestinal health. There is also some research suggesting that Enterococcus can help modulate the intestinal immune response and inhibit pathogenic bacteria, which could indirectly benefit small intestinal function. The European Food Safety Authority (EFSA) has recognized some strains as safe for use in animal feed, but human applications are evaluated on a strain-by-strain basis due to concerns about potential antibiotic resistance.

In summary, while there is some scientific evidence supporting the use of specific Enterococcus strains for aspects of gastrointestinal health, particularly in preventing certain types of diarrhea, the overall evidence for general small intestinal "support" is moderate and should be interpreted cautiously. Not all strains are beneficial, and safety considerations are important.

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