Gut-Brain Axis

The gut-brain connection is real, but what actually works? Evidence-based probiotics, butyrate, diet, and testing strategies for mental health.

Your gut bacteria make a compound called butyrate that crosses into your brain, reduces inflammation, and may be the missing piece in treating depression.

The gut-brain connection is more specific than you think — new research maps the exact pathways your gut bacteria use to influence your mental health.

The immune pathway from gut inflammation to brain fog runs through cytokines and microglial activation — and it’s more direct than you think.

The gut-brain serotonin pathway is the mechanism behind mood swings, anxiety, and brain fog that start in your digestive system.

IBS affects 10-15% of adults — and the functional medicine approach targets root causes rather than just managing symptoms.

Your mouth harbors bacteria that can reach your brain through your bloodstream, a cranial nerve, and your gut — here’s how the oral-gut-brain axis actually works.

The vagus nerve carries 80% of gut-to-brain signals — and you can actively strengthen its function through specific practices.

New research maps exactly how bacteria in your mouth reach your brain and contribute to cognitive decline — and the connection is more direct than anyone thought.

Your gut bacteria make butyrate from fiber — but not all fiber works the same way. Here’s what to eat, what to skip, and whether supplements are worth it.

A compound your gut bacteria make from fiber literally changes which genes your brain expresses — and the effect compounds over time.

Your mouth is the starting point of a pathway that reaches your brain — and most people have no idea it exists.