Feb 24, 2026Gut Barrier Integrity in Aging: Intestinal Permeability, Inflammaging, and SupportAge-related increases in intestinal permeability ("leaky gut") allow bacterial products including lipopolysaccharide (LPS) to enter systemic circulation, driving chronic low-grade inflammation associated with multiple aging-related conditions. Evidence-based interventions include dietary fiber, fermented foods, and specific probiotics — though research on reversing permeability changes in older humans is in early stages.
Feb 21, 2026Gut Microbiome and Probiotics in Aging: Diversity Decline, Leaky Gut, and Evidence-Based InterventionsThe gut microbiome undergoes progressive diversity loss with age — a pattern linked to increased intestinal permeability, systemic inflammation, and reduced short-chain fatty acid production. Dietary fiber, fermented foods, and targeted probiotics have the best evidence for reversing these changes.
Feb 21, 2026Lactobacillus acidophilus: Gut Health, Immune Modulation, and Strain-Specific EvidenceLactobacillus acidophilus is one of the most studied probiotic species, with evidence spanning IBS symptom relief, immune modulation, and cholesterol reduction. Strain specificity matters enormously — not all L. acidophilus products produce identical effects.
Feb 20, 2026Irritable Bowel Symptom Load: Fiber-Probiotic Personalization and What to TrackIBS control is strongest with targeted diet structure and symptom tracking. Psyllium, selected probiotics, inulin titration, and ginger can be useful but require personalization.
Feb 20, 2026Constipation and Low Fiber Intake: Psyllium, Inulin, and Probiotic EvidenceGuideline-aligned constipation care starts with fiber and hydration strategy. Psyllium has the strongest direct bowel evidence, while inulin and selected probiotics can add context-specific support.
Jan 31, 2026Gut Health and Microbiome Optimization: Fiber, Prebiotics, Probiotics, and Testing OptionsThe gut microbiome influences metabolic health, immune function, and even cognitive and mental health. Evidence supports dietary fiber as the primary driver of microbiome diversity. Targeted probiotics have strain-specific evidence for IBS, antibiotic recovery, and immune support.