Food Sensitivities

Definition

Food sensitivities are distinct from food allergies (immediate IgE-mediated reactions) and classic food intolerances (enzymatic, such as lactose intolerance). They involve delayed immune responses — often IgG or IgA mediated — and disruptions in gut microbiome function that produce variable, delayed symptoms (hours to days after exposure) affecting multiple systems. Common trigger foods include gluten, dairy, eggs, corn, soy, and highly processed foods, though individual sensitivities vary widely. Intestinal permeability plays a central role: when the gut barrier is compromised, food proteins that would normally remain in the intestinal lumen enter circulation and trigger immune responses. Unlike true allergies, food sensitivities do not require complete elimination in all cases — restoring gut integrity often reduces or resolves them. Testing methods (IgG panels, elimination diets, GI-MAP beta-glucuronidase levels) provide different levels of insight.

Frequently Asked Question

How are food sensitivities different from food allergies?

Food allergies involve an immediate IgE-mediated immune response — symptoms occur within minutes, can be severe (anaphylaxis), and are typically consistent. Food sensitivities involve a different immune pathway and often delayed reactions — symptoms may appear hours to two days after exposure and vary based on quantity, gut status, and cumulative load. This delayed and variable nature is why food sensitivities are difficult to self-identify without structured investigation.

Can healing the gut reduce food sensitivities?

Yes — and this is a key insight in functional medicine. Many food sensitivities develop as a consequence of leaky gut, not as primary immunological conditions. When incompletely digested food proteins cross a damaged gut barrier, the immune system learns to react to them. When gut integrity is restored — through dysbiosis correction, permeability support, and anti-inflammatory diet — immune reactivity to those foods often diminishes or resolves.

Are IgG food sensitivity tests accurate?

IgG food sensitivity tests detect elevated antibodies to specific foods — elevated IgG indicates immune exposure and response, not necessarily a clinical sensitivity. They generate high rates of both false positives and false negatives in the absence of clinical correlation. SPOKEmed interprets food sensitivity testing within the context of the full gut health picture — including GI-MAP findings, intestinal permeability markers, and clinical symptoms — rather than using IgG panels as standalone diagnostic tools.

Why Food Sensitivities Matters

Many SPOKEmed patients have years of unexplained and varied symptoms that connect back to food sensitivities and leaky gut — fatigue, bloating, brain fog, joint pain, and skin issues that do not have obvious single causes. Identifying and addressing food sensitivities is frequently transformative for these patients.

How Spokmed Company Uses It

SPOKEmed approaches food sensitivities through gut health testing (GI-MAP), clinical history, and targeted elimination protocols when indicated. Rather than ordering broad IgG food sensitivity panels without clinical context, SPOKEmed evaluates the gut environment — including permeability and dysbiosis — as the foundation for understanding why sensitivities have developed and how to address them structurally.

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"Food Sensitivities" Appears in These Categories

Gut Health & Microbiome Optimization