A friendly gut bacterium that supports digestion, helps ease stress, and keeps bowel habits regular.
What it is
Bifidobacterium longum is one of the main friendly bacteria naturally found in yogurt and the human gut. It supports smooth digestion and helps your gut communicate with your brain.
In Velobiotics products, each B. longum bacterium is covered in a protective micro-shield. This keeps the bacteria safe from harsh stomach acid so they reach your gut alive and ready to work.
Also known as: B. longum
Key benefits
- Supports the gut-brain connection so you can handle everyday stress more easily.
- Helps keep bowel movements regular and comfortable.
- Protects gut cells from everyday wear and tear.
- Supports a balanced immune system so your body stays resilient.
Amplified by probiotics
Bifidobacterium longum works alongside other friendly bacteria in your gut to break down plant fibres. As it feeds on these fibres, it produces healthy organic acids that lower gut acidity. This creates a friendly home for other good bacteria like Lactobacillus while keeping bad bacteria away. Together with micro-shielded probiotics, it strengthens your gut lining and sends calming signals to your brain.
Typical dose
1–10 billion live bacteria (CFU) a day
The evidence
Evidence: strongMultiple human studies show that Bifidobacterium longum helps ease stress symptoms, lowers stress hormones, and improves gut comfort in people with sensitive bowels. Large reviews of many studies confirm that it supports enteric neuro-immune signalling and maintains gut microflora balance. (Watters SIN 2026, Nutrients) (Huang Y 2026, Front Cell Infect Microbiol) (Chen R 2026, Gut Microbes)
- Watters SIN, et al. Sourdough Bread and Baker's Yeast Bread Affect Gut Symptoms and Targeted Gut Microbial Taxa Differently: A Randomised Controlled Trial. Nutrients. 2026;18: PubMed ↗
- Huang Y, et al. Effect of perioperative multistrain probiotics on the CT callus volume fraction at 12 weeks after surgery for closed tibial shaft fracture: a single-center randomized controlled study. Front Cell Infect Microbiol. 2026;16:1778557 PubMed ↗
- Chen R, et al. Gut microbiota and metabolic alterations in participants with flatulence identify Faecalibacterium prausnitzii as a key microbial target for clinical intervention. Gut Microbes. 2026;18:2728332 PubMed ↗
Safety & who should check first
Bifidobacterium longum is very safe for children, adults, and older individuals. You might notice mild gas at first as your gut adjusts. Speak to your doctor first if you have a severely weakened immune system.