Lactobacillus plantarum Lp-299v
Lactobacillus plantarum Lp-299v is a specific probiotic strain that adheres strongly to intestinal epithelial cells through mannose-specific adhesins. It modulates gut microbiota composition and reduces inflammatory cytokines to support digestive health and alleviate IBS symptoms.

Origin & History
Lactobacillus plantarum Lp-299v is a probiotic strain isolated from human saliva, known for its robust nature and ability to adhere to the intestinal mucosa.
Historical & Cultural Context
Lactobacillus plantarum has been used in traditional fermented foods like sauerkraut and kimchi, valued for its health benefits across various cultures.
Health Benefits
- Supports digestive health by balancing gut microbiota, leading to improved digestion and reduced bloating. It increases beneficial bacteria diversity. - May alleviate symptoms of irritable bowel syndrome (IBS) by reducing abdominal pain and discomfort. Clinical studies report a 30% reduction in IBS symptoms. - Enhances immune function by modulating immune responses, resulting in fewer infections. It boosts the production of protective antibodies. - Supports cardiovascular health by lowering cholesterol levels, contributing to a healthier heart. Research shows a 10% reduction in LDL cholesterol. - Improves skin health by enhancing the gut-skin axis, leading to clearer and more hydrated skin. It reduces inflammation and oxidative stress. - Aids in weight management by influencing appetite hormones and metabolism. It helps regulate body weight and fat distribution. - Enhances mental well-being by supporting the gut-brain axis, which can improve mood and reduce stress. Studies indicate a 15% improvement in emotional stability.
How It Works
Lactobacillus plantarum Lp-299v adheres to intestinal epithelial cells via mannose-specific lectins, enhancing colonization resistance against pathogenic bacteria. The strain produces antimicrobial compounds including plantaricin and modulates immune responses by reducing pro-inflammatory cytokines IL-6 and TNF-α while increasing anti-inflammatory IL-10. It strengthens intestinal barrier function by upregulating tight junction proteins claudin-1 and occludin.
Scientific Research
Lactobacillus plantarum Lp-299v has been extensively studied, with research supporting its role in improving digestive health and reducing IBS symptoms.
Clinical Summary
Clinical trials involving over 800 participants demonstrate that Lactobacillus plantarum Lp-299v significantly reduces IBS symptoms, with a 30% reduction in abdominal pain reported in randomized controlled studies. A 12-week double-blind trial with 214 IBS patients showed significant improvements in pain scores and bowel movement frequency compared to placebo. Additional studies indicate reduced bloating and improved stool consistency, though most trials are relatively small-scale with 50-200 participants. Evidence quality is moderate, with consistent results across multiple independent research groups.
Nutritional Profile
- Contains live probiotic bacteria. - Typically available in capsule or powder form. - Free from artificial additives.
Preparation & Dosage
Recommended dosage is 10 to 20 billion CFU per day. Consult a healthcare provider before use.
Synergy & Pairings
Bifidobacterium lactis, Omega-3 fatty acids, Fiber
Safety & Interactions
Lactobacillus plantarum Lp-299v is generally well-tolerated with minimal side effects, though some individuals may experience temporary mild bloating or gas during initial supplementation. No significant drug interactions have been reported, but individuals taking immunosuppressive medications should consult healthcare providers before use. The strain is considered safe during pregnancy and breastfeeding based on its long history of safe use in fermented foods. People with severe immune compromise or central venous catheters should avoid probiotic supplementation without medical supervision.