Food Sensitivity Testing
Food Sensitivity IgG Test
Also known as: IgG food sensitivity panel (190 foods)
Delayed reactions to 190 common foods, plus Candida and yeast.
Food allergies cause immediate, obvious reactions. Food sensitivities are quieter — delayed reactions 24 to 72 hours after eating, which makes them almost impossible to pin down on your own. This panel rates IgG reactivity to 190 common foods as mild, moderate, or high.
What it measures
Foods Tested (190)
Rated mild, moderate, or high reactivity.
- Dairy and eggsCommon everyday proteins.
- Grains and glutenWheat, other grains, and gluten proteins.
- Meats, poultry, seafoodAnimal proteins.
- Fruits and vegetablesA wide range of produce.
- Nuts, seeds, legumesPlant proteins.
- Herbs, spices, additivesSeasonings and common additives.
Yeast
- Candida albicansReactivity may point to yeast activity.
- Brewer's/baker's yeastFound in bread, beer, and fermented foods.
Who this is for
Useful when you suspect food is part of the picture but can't connect symptoms to any one meal.
- Bloating or digestive upset after meals
- Headaches
- Brain fog
- Itchy skin, eczema, or acne
- Joint pain or stiffness
- Fatigue after eating
- Low mood or irritability
- Puffiness
Two ways to get the Food Sensitivity IgG Test
Lab Only
Available to program members — ordered and reviewed by Tiffeny.
Personalized with Tiffeny
RecommendedWant your results personally reviewed?
- One-on-one interpretation of your results
- Written Root Cause Report
- Personalized 12-week protocol
✦ Members receive exclusive pricing on multi-lab orders. See member perks →
Labs are processed by a CLIA-certified laboratory partner. To protect your privacy, I can only see your results if you add Tiffeny Parker as your practitioner.
What results can reveal
- Foods driving delayed reactions
- Yeast reactivity
- A starting point for a temporary elimination plan
How we interpret it
We read every panel through a functional lens — optimal reference ranges, ratios, and cross-panel patterns. Results become part of your written Root Cause Report and your personalized 12-week protocol.
Reactive foods are removed temporarily while we heal the gut, then reintroduced strategically. IgG reactivity is a guide, not a diagnosis.
Often paired with
Common questions
Not sure which panels you need?
Start with the Root-Cause Fit Assessment. Takes about 3–5 minutes. If it looks like we're a good fit, you'll be invited to schedule a 45-minute consultation to discuss your health history, goals, and whether this program is the right next step for you.
Educational information only. Functional lab testing is not intended to diagnose, treat, cure, or prevent any disease. Results are reviewed in the context of your full health history.