Research
Mixed
Administration of specific probiotic strains (primarily Lactobacillus and Bifidobacterium) reduces body weight and adipose tissue mass in diet-induced obese animal models through mechanisms involving SCFA production, gut barrier integrity, and immune modulation.
Specific probiotic strains (like Lactobacillus and Bifidobacterium) show promise in reducing fat mass in animal studies, but human results are inconsistent. Do not rely on probiotics as a primary weight loss strategy. They may offer modest metabolic support when combined with a healthy diet, but they are not a standalone solution for obesity.
ModerateSupportsMEDIUM confidence
A majority of the studies reviewed here focused on intervention with Lactobacillus spp. and have demonstrated considerable anti-obesity effects and the potential for probiotic based therapies in the treatment and prevention of obesity [82].
Why this rating
Strong evidence in animal models, but human clinical trials are described as 'sparse and inconsistent'.
Source
Probiotics: How Effective Are They in the Fight against Obesity?
Kiran Mazloom et al. · Nutrients · 2019
DOI 10.3390/nu11020258
narrative_reviewCited 188×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Obesity is associated with a specific gut microbiota composition characterized by a higher Firmicutes-to-Bacteroidetes ratio, lower bacterial gene richness, and increased gut permeability leading to metabolic endotoxemia.Good
- Probiotics can improve gut barrier integrity and reduce metabolic endotoxemia (LPS translocation) in obese models, thereby lowering systemic inflammation.Moderate
Related findings · Mixed
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