Leaky Gut Isn’t Optional Supplementation — It’s Removing an Alarm

Gut repair often gets treated as a nice-to-have — a few supplements once the “real” work is done. In mold illness it is the opposite: a leaky gut is a source of daily alarm that keeps you sick even after you have left the building.

A second exposure, from the inside

Mold toxins pry apart the tight junctions that seal your gut lining. Through those gaps, bacterial fragments (LPS) leak into the bloodstream — and they hit the immune system with the same “severe infection” signal as inhaled toxins. Crucially, this input continues after you move out.

Repairing the gut barrier is not optional supplementation. It is elimination of a CDR1 input stream. — Andrew Heyman, MD

Why new food reactions appear

A leaky barrier also exposes the gut’s immune cells to food proteins they never used to meet — which is why new sensitivities show up. The food did not change; the barrier did. Chasing elimination diets treats the symptom; repairing the barrier treats the cause.

Rebuilding the seal

The barrier repairs with specific tools — L-glutamine, zinc carnosine, colostrum or immunoglobulins, phosphatidylcholine — plus the fiber that feeds the microbes which keep the lining calm.

The takeaway

Sealing the gut is not a supplement afterthought. It is shutting off one of the alarm’s remaining inputs — one that, left open, can keep the whole danger program running no matter what else you do.