Depression

Your gut bacteria don’t just digest food — they literally control which of your brain genes get expressed.

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.

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 gut bacteria produce a compound called butyrate that directly affects brain chemistry. Here is how it works and what you can eat to boost it.

Your gut bacteria produce a compound that literally changes which genes your brain expresses — and it may be the missing piece in understanding depression.

SSRIs don’t work for half of depressed patients. The reason might start in your gut, not your brain.

Your body needs tryptophan to make serotonin. But when your gut is inflamed, that tryptophan gets stolen — and the byproducts are worse than low mood.

New research challenges the chemical imbalance theory of depression. The real culprit might be chronic inflammation originating in your gut.

The specific probiotic strains with real clinical evidence for improving mood — and the ones that don’t cross the gut-brain barrier.

The immune-cytokine model of depression shows how gut inflammation sends chemical signals to your brain — and what you can do to interrupt the cycle.

The gut-brain axis isn’t a theory anymore — it’s a mechanism. Here’s how your microbiome controls your mood and what to do about it.