B420 Probiotic Evidence for Weight Management & Waist Support
Bifidobacterium animalis subsp. lactis B420
Form
Live Probiotic Culture
Source
Dairy
Clinically Studied Benefits
- Metabolic Health
- Immune Health
- Digestive Health
- Brain Health
Clinical Studies
30
Clinical Human Participants
6248
Recommended Population
Adults seeking weight management or metabolic health improvement.
Contraindicated Population
Immunocompromised individuals, patients with acute pancreatitis, or those with post-surgery open wounds.
Target Health Outcomes
- Waist Circumference Shrinkage: Clinically proven to reduce waist size, helping restore pre-pregnancy body silhouette.
- Combating Visceral Adiposity: Directly addresses the increase in deep belly fat (visceral fat) associated with hormonal aging.
- Prevention of "Menopausal Middle": Helps mitigate the rapid expansion of waist circumference and improves postprandial glucose tolerance.
Mechanism of Action (MoA)
B420 →
Strengthens Gut Barrier (Tight Junctions) →
Lowers LPS (Systemic Endotoxins) →
Boosts GLP-1/PYY (Satiety) →
Result: Reduced Visceral Adipose Tissue (VAT).
Known Limitations & Uncertainties
- Population: Evidence focused on overweight/obese cohorts.
- Duration: Significant results typically require 3~6 months of intake.
- Synergy: Enhanced effects when combined with prebiotic fibers.
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Randomized controlled trial demonstrates response to a probiotic intervention for metabolic syndrome that may correspond to diet
Stanford University
Probiotic With or Without Fiber Controls Body Fat Mass, Associated With Serum Zonulin, in Overweight and Obese Adults—Randomized Controlled Trial
DuPont Nutrition & Health
Probiotic or synbiotic alters the gut microbiota and metabolism in a randomised controlled trial of weight management in overweight adults
DuPont Nutrition & Health
Polydextrose with and without Bifidobacterium animalis ssp. lactis 420 drives the prevalence of Akkermansia and improves liver health in a multi-compartmental obesogenic mice study
IFF Health & Biosciences
The efficacy of probiotics and/or n-3 long-chain polyunsaturated fatty acids intervention on maternal prenatal and postnatal depressive and anxiety symptoms among overweight and obese women
University of Turku
Effects of Bifidobacterium animalis ssp. lactis 420 on gastrointestinal inflammation induced by a nonsteroidal anti-inflammatory drug: A randomized, placebo-controlled, double-blind clinical trial
IFF Health & Biosciences
Iodine status in pregnant women and infants in Finland
University of Turku
The effect of probiotics on faecal microbiota and genotoxic activity of faecal water in patients with atopic dermatitis: a randomized, placebo-controlled study
Friedrich Schiller University Jena
Bifidobacterium lactis Fermented Milk Was Not Effective for Helicobacter pylori Eradication: A Prospective, Randomized, Double-Blind, Controlled Study
University of São Paulo (USP)
The immune system in healthy adults and patients with atopic dermatitis seems to be affected differently by a probiotic intervention
Friedrich Schiller University Jena
