# FOX (Food Xplorer)

> Multiplex diagnostic test panel measuring IgG antibodies against 286 food antigens.

FOX (Food Xplorer) is a laboratory diagnostic panel developed by Macro Array Diagnostics (MADx) designed to identify delayed food intolerances. It tests patient blood samples across 286 food antigens to measure specific IgG antibody levels. This provides clinicians and patients with data to guide elimination diets for chronic symptoms like gut issues and fatigue.

Website: https://madx.com/products/fox

## What it is for

- Identify delayed food intolerances linked to chronic gut or skin symptoms
- Screen IgG antibody responses across 286 specific food antigens
- Guide personalized elimination and rotation diets using laboratory data

## Features

- Multiplex array screening 286 food antigens simultaneously
- Measurement of IgG antibody levels for delayed immune responses
- Broad food category coverage including dairy, eggs, grains, and meats
- Diagnostic reporting to help formulate targeted dietary changes

## Pricing

Paid. Pricing varies by clinical laboratory or ordering healthcare provider

## Details

- Type: other
- Category: [Lifestyle](https://xiry.app/topics/lifestyle.md)
- Open source: no
- Platforms: other
- For: Healthcare practitioners, clinical laboratories, and patients investigating chronic food sensitivities.
- Alternative to: ALCAT, Everlywell Food Sensitivity Test
- Tags: diagnostics, food intolerance, igg testing, nutrition, lab test, gut health

## Why it was saved

- [@yyaankeee, 4 September 2025](https://www.instagram.com/reel/DOLls9mjMj1/): Unlike standard IgE allergy tests, it pinpoints foods causing slow immune responses that lead to chronic gut issues, fatigue, headaches, and skin problems.

## Related

- [Symptoms to Vitamin and Mineral Deficiencies Cheat Sheet](https://xiry.app/resources/symptoms-to-vitamin-and-mineral-deficiencies-cheat-sheet): Quick reference linking common physical symptoms to possible nutrient deficiencies (List, Free)

Updated 3 October 2026. Page: https://xiry.app/resources/fox-food-xplorer

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