Longevity LifehacksEvidence Map
Mechanisms/Gut microbiome
Mechanism

Gut microbiome

Gut microbes make metabolites that can protect (bifidobacteria, 5-AVAB, arginine) or harm (imidazole propionate), shaping immune balance, heart, and brain health; modern exposures like artificial sweeteners shift the microbiome.

7 interventions act here

C15:0 (Pentadecanoic Acid) Odd-chain saturated fat linked to better metabolic and heart health in observational studies; supplement trials show minimal effect. Supplement HeartGut barrierInflammaging 1 posts
Trial3
Obs.2
Animal1
Cell0
Skeptical
Arginine Semi-essential amino acid that fuels T cells and feeds spermidine; reduced amyloid-beta in Alzheimer's mice. Amino acid Alzheimer'sInflammagingGut barrierHeart 6 posts
Trial3
Obs.1
Animal2
Cell0
In my stack
L-Glutamine Abundant amino acid fueling gut lining cells and mucus; she takes it to protect the gut barrier. Amino acid Gut barrierInflammagingHeart 5 posts
Trial3
Obs.1
Animal2
Cell0
In my stack
Light at Night & Melatonin Bright days and dark nights maximize melatonin, an antioxidant linked to lower mortality and Alzheimer's protection. Diet & lifestyle Alzheimer'sHeartInflammagingGut barrier 11 posts
Trial2
Obs.3
Animal1
Cell0
I've used it
Spermidine Polyamine that induces autophagy and declines with age; extends lifespan in model organisms. Supplement Alzheimer'sHeartInflammagingMuscle, skin 2 posts
Trial2
Obs.1
Animal2
Cell1
Watching
Urolithin A Gut-microbe metabolite of ellagitannins that boosts mitophagy and may counter age-related immune decline. Supplement InflammagingGut barrier 3 posts
Trial2
Obs.0
Animal1
Cell0
In my stack
Microplastics Reduction Cutting nanoplastic exposure, found in arterial plaque and brain tissue, and keeping the gut barrier strong. Environment HeartAlzheimer'sGut barrierInflammaging 6 posts
Trial0
Obs.3
Animal2
Cell1
I've used it