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Abstract

Despite the fact that gut microbiota is closely associated with obesity, few studies have focused on the influences of paraprobiotics as food ingredients on both obesity prevention and the gut microbial community. In this study, we evaluated the effects of fragmented Lactobacillus amylovorus CP1563 (CP1563) as a paraprobiotic for obesity prevention and investigated its effects on the gut microbial community in pre-obese subjects. One hundred sixty-nine healthy subjects with a body mass index from 25.0 to 29.9 kg/m2 ingested beverages with or without the fragmented CP1563 containing 10-hydroxyoctadecanoic acid (10-HOA) for 12 weeks. The changes in abdominal, total, visceral, and subcutaneous fatty areas were significantly lower in the CP1563-10-HOA group than in the placebo group at 12 weeks. Furthermore, 16S rRNA gene sequencing of fecal DNA revealed that the changes in the abundances of the genera Roseburia and _Lachnospiraceae;_g were significantly greater in the CP1563-10-HOA group than in the placebo group, and the changes in the abundances of the genus Collinsella was significantly smaller in the CP1563-10HOA group than in the placebo group. Our results showed that continuous ingestion of the fragmented CP1563 containing 10-HOA reduced abdominal body fat and affected the gut microbial community in pre-obese healthy subjects. Our findings may contribute to the understanding of the relationship between the anti-obesity effect of paraprobiotics and gut microbiota.

Keywords: 10-hydroxyoctadecanoic acid; Lactobacillus amylovorus CP1563; butyrate-producing bacteria; clinical trial; gut microbiota; obesity; paraprobiotics.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Lactobacillus amylovorusAltered Gut Microbial CommunityBeneficial
Moderate
Lactobacillus amylovorusReduced Abdominal FatBeneficial
Large
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