bifidobacterium bifidum

## Overview\nBifidobacterium bifidum is a probiotic bacterial species used as a live microbial therapeutic or supplement rather than a single chemically defined small-molecule drug. It is a common early-life gut commensal and is being studied across multiple strain-specific products for gastrointestinal, allergic, neurodevelopmental, ocular-surface, and intestinal-health indications. The evidence provided here includes strain-specific clinical development such as **Bf-688** in children with attention-deficit/hyperactivity disorder, where oral add-on treatment to methylphenidate improved objective attention test metrics and altered gut microbiome composition, and earlier open-label data suggesting improvement in ADHD symptoms and weight gain. Other cited programs involve strain-specific use in irritable bowel syndrome, constipation, infantile eczema, milk protein allergy, dyslipidemia, postoperative refractive discomfort, and intestinal barrier aging. Mechanistically, bifidobacterium bifidum acts through **microbiome modulation**, competitive ecological effects in the gut, fermentation of carbohydrates and production of metabolites such as short-chain fatty acids, and downstream effects on gut barrier function, immune signaling, inflammation, and gut-brain-axis biology. Because activity is highly **strain-specific**, the species name alone does not uniquely identify a single proprietary asset, manufacturer, or clinical product.

Brand names

Hyperbiotics Bifidobacterium ProbioticPro-Bifido 50+Infloran

Other names

B. bifidumBifidobacterium bifidum probioticBifidobacterium bifidum live bacteriaBifidobacterium bifidum F35Bifidobacterium bifidum G9-1Bifidobacterium bifidum MIMBb75Bifidobacterium bifidum TMC3115