Probiotic
Bifidobacterium infantis 35624
Also known as: B. infantis 35624, Bifantis, Align probiotic, Bifidobacterium longum subsp. infantis 35624
B
Evidence
Most-studied probiotic strain for IBS. Repeated RCTs show symptom improvement at 1 billion CFU/day.
Primary uses
- IBS symptom relief
- Abdominal pain
- Bloating
- Bowel regularity
How it works
- Modulates intestinal cytokine balance (raises IL-10, lowers IL-6/TNF-alpha)
- Restores gut barrier function in inflammatory states
- Influences enteric nervous system signaling
Dosage
- Typical range
- 1 billion CFU once daily
- Timing
- Same time daily
- With food
- With or without food per product directions
- Duration
- Trials show benefit emerging over 4 weeks; safe for long-term use
- Special populations
- Generally safe in pregnancy and pediatrics; consult provider in immunocompromised states
Forms
- Capsule (single-strain)
- Multi-strain blend
Safety
Common side effects
- Transient gas or bloating in the first 1-2 weeks
Contraindications
- Central venous catheters in critically ill patients
Evidence notes
Multiple RCTs in IBS show reduced abdominal pain, bloating, and urgency. Effect is strain-specific — generic B. infantis products may not deliver the same benefit.
Grade B: Some human trials support key claims; further confirmation needed.
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