Obesity-Associated Gut Microbiota is Enriched in Lactobacillus reuteri and Depleted in Bifidobacterium animalis
This 2011 study analyzed stool samples from 68 obese and 47 normal-weight individuals using quantitative PCR and culture techniques. The findings indicated that Lactobacillus reuteri was significantly more abundant in obese subjects (OR = 1.79; 95% CI: 1.03–3.10; P = 0.04), while Bifidobacterium animalis and Methanobrevibacter smithii were more prevalent