How are Leaky Gut Test and allergy related?

A 'Leaky Gut Test' (intestinal permeability) is often linked to allergies based on the hypothesis that a compromised gut barrier allows allergens to enter the bloodstream, triggering immune reactions. However, the evidence for this causal relationship is weak and largely mechanistic or from animal models. MyBody-X does not offer a leaky gut test; their DNA analysis does not measure gut permeability. Stool-based tests for markers like zonulin or LPS are not clinically validated for allergy diagnosis. The connection remains speculative, and established allergy diagnostics (specific IgE, skin prick tests) are the standard of care. MyBody-X tests are marketed as lifestyle insights, not medical diagnostics. Caveat: Relying on such tests without medical guidance may lead to unnecessary dietary restrictions or delayed proper diagnosis.