(Google traduction)"On primary prevention, in a recent double-blind presented American College of Gastroenterology where 44 patients who had a yogurt enriched lactobacilli were compared with 45 patients with placebo, the incidence of diarrhea was significantly lower in the group with probiotic (p = 0.01). However, in view specifically of diarrhea associated with Clostridium difficile, the difference between the groups was less significant (1 patient in the probiotic group vs 7 in the placebo group had an episode of CDAD, p = 0.058)."
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Yoghurt efficiency is not homeopathic lie.
From the "Québec Nationnalle health agency", an official document (PDF, French), page 36.
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(Google traduction)"On primary prevention, in a recent double-blind presented American College of Gastroenterology where 44 patients who had a yogurt enriched lactobacilli were compared with 45 patients with placebo, the incidence of diarrhea was significantly lower in the group with probiotic (p = 0.01). However, in view specifically of diarrhea associated with Clostridium difficile, the difference between the groups was less significant (1 patient in the probiotic group vs 7 in the placebo group had an episode of CDAD, p = 0.058)."