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 24, 2026Recurrent UTIs in Aging: Prevention Strategies Beyond AntibioticsRecurrent urinary tract infections are common in older adults, particularly post-menopausal women, and lead to significant antibiotic overuse. This article covers evidence-based prevention strategies including d-mannose, cranberry, and vaginal microbiome support.
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 20, 2026Inulin and Prebiotic Fiber: Microbiome Diversity, GLP-1, and Metabolic BenefitsInulin-type fructans selectively feed Bifidobacterium and Lactobacillus species, raising SCFA production. Clinical trials show dose-dependent improvements in glycemic control, lipid profiles, and gut transit. Effective doses (10–20 g/day) frequently cause transient gas — gradual titration is essential.
Feb 13, 2026The Microbiome-Longevity Connection: Centenarian Studies, Gut Diversity, and Prebiotic StrategyCentenarian microbiome studies consistently show higher diversity, more short-chain fatty acid producers, and distinct bacterial profiles compared to age-matched controls. Dietary fiber remains the strongest intervention for diversity. This article maps what the longevity-microbiome evidence shows and what remains speculative.
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.