Enterococcus faecium is a lactic acid bacterium people take as a probiotic. Live microorganisms like this one help keep the gut microbiome in balance.
You reach for it when digestion feels off or stools become irregular. Some strains also interact with the body's natural defenses and, in specific cases, shorten bouts of diarrhea.
It comes in capsules, tablets, or powders. Store it as the label says so the living organisms stay alive and effective.
Key cautions: Skip probiotics if your immune system is severely weakened (for instance, after an organ transplant or during chemotherapy) unless a doctor directs otherwise. Rare infections have occurred. Certain Enterococcus faecium strains carry antibiotic resistance genes. Speak with a healthcare provider before you begin a new supplement routine.