Gut Health

What it is

Gut health refers to the function and microbial ecosystem of your gastrointestinal tract. The gut microbiome, trillions of bacteria, fungi, and other organisms, plays a central role in digestion, immune function, inflammation, and increasingly, mental health (via the gut-brain axis). Interventions range from dietary changes (fiber, fermented foods) to specific probiotics, prebiotics, and elimination diets.

What the evidence says

This is one of the most active areas in health research right now, and findings are genuinely exciting, but also frequently overhyped in popular media. Strong evidence exists for specific probiotics in specific conditions: for example, certain strains for IBS, antibiotic-associated diarrhea, and some inflammatory conditions. The connection between gut microbiome and mental health is real but complex, we know they're linked, we don't yet know reliably how to intervene. Fecal microbiota transplants (FMT) have strong evidence for recurrent C. diff infections. Many commercial gut health products have limited or no evidence behind them.

What a first session looks like

Working on gut health usually starts with assessment, what are your symptoms, diet, bowel habits, history with antibiotics, stress levels? A practitioner might recommend food journaling, an elimination diet, specific probiotic strains, or testing. GI Map or comprehensive stool testing can be useful but is also sometimes over-ordered.

Red flags to watch out for

• !Expensive proprietary 'gut protocols' with no individualization
• !Non-validated food sensitivity tests (IgG tests are not clinically validated for food intolerance)
• !Extreme elimination diets without professional guidance
• !Claims to cure autoimmune disease through gut protocols alone