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Abstract

Probiotic organisms have shown promise in treating diseases. Previously, we have reported on the efficacy of microencapsulated Lactobacillus reuteri NCIMB 30242 in a yogurt formulation at lowering serum cholesterol levels in otherwise healthy hypercholesterolemic adults. This study investigates the safety and toxicology of oral ingestion of microencapsulated L. reuteri NCIMB 30242 in a yogurt formulation. A randomized group of 120 subjects received a dose of 5 × 10(10) CFU microencapsulated L. reuteri NCIMB 30242 in yogurt (n=59) or placebo yogurt (n=61) twice/day for 6 weeks. Clinical chemistry and hematological parameters of safety were analyzed. Fecal samples were collected at these time points for the analysis of deconjugated bile acids. The frequency, duration and intensity of adverse events (AEs) and clinical significance of safety parameters were recorded for both groups. No clinically significant differences between the probiotic yogurt and placebo yogurt treated groups were detected in either the blood clinical chemistry or hematology results and there was no significant increase in fecal deconjugated bile acids (P>0.05) between treated and control groups. The frequency and intensity of AEs was similar in the two groups. These results demonstrate the safe use of this formulation in food.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Lactobacillus reuteri NCIMB 30242Safe Use of Lactobacillus reuteri NCIMB 30242Neutral
Large
LRC (NCIMB 30242)Stable Fecal Deconjugated Bile Acid LevelsNeutral
Small

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