Gut-Brain Axis
Cross-source consensus on Gut-Brain Axis from 2 sources and 10 claims.
2 sources · 10 claims
How it works
Comparisons
Evidence quality
Highlighted claims
- 80–90% of vagal nerve fibers carry signals from the gut upward to the brain, not downward. — Food as Medicine for the Brain: Gut, Microbiome, and Mental Health
- Gut barrier disruption caused by stress, infection, antibiotic overuse, or poor diet allows microbiota to leak into the bloodstream and trigger pro-inflammatory cytokine release. — Neuroinflammation and Treatment-Resistant Depression
- Approximately 80% of vagal signals are afferent, traveling from the body up to the brain. — Neuroinflammation and Treatment-Resistant Depression
- The vagus nerve controls macrophage inflammatory tone via acetylcholine release; depleted vagal tone shifts macrophages toward a pro-inflammatory state. — Neuroinflammation and Treatment-Resistant Depression
- The causal direction in gut-brain illness runs from gut to brain: a dysbiotic gut sends distress signals up the vagus nerve, producing anxiety and behavioral dysregulation. — Food as Medicine for the Brain: Gut, Microbiome, and Mental Health
- Approximately 70% of the body's immune cells by volume reside in the gut lining. — Neuroinflammation and Treatment-Resistant Depression
- A 2024 Nature study identified the neural pathway by which gut immune signals travel via vagal afferents to the brainstem and hypothalamus. — Neuroinflammation and Treatment-Resistant Depression
- Irritable bowel syndrome was historically misclassified as psychosomatic; the gut condition precedes and causes the mental state, not the reverse. — Food as Medicine for the Brain: Gut, Microbiome, and Mental Health
- The gut microbiome continuously performs natural vagus nerve stimulation by communicating gut state directly to the brain. — Food as Medicine for the Brain: Gut, Microbiome, and Mental Health
- A child's severe violent behavior resolved rapidly after treatment for gut pathogen and fungal overgrowth detected on stool and urine organic acid testing. — Food as Medicine for the Brain: Gut, Microbiome, and Mental Health