Probiotics replenish good bacteria

Probiotics replenish good intestinal bacteria that antibiotics can harm. Doctors say nearly one in three people who take antibiotics to treat infection get diarrhea, which may cause them to stop taking antibiotics early.

In one large review, researchers analyzed 63 antibiotic-infection treatment studies, including 11,811 people who also took probiotics—most commonly Lactobacillus—with their antibiotic treatment. Compared to placebo, those who took probiotics along with antibiotics were 42 percent less likely to have diarrhea as a side effect. People got the benefit regardless of the type or dose of probiotics.

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