Testing Myths & Facts
Not all tests are created equal. Learn which ones are scientifically valid and which ones to avoid.
IgG Blood Tests
Often marketed as "Food Sensitivity Tests"
These tests are widely sold online but are not recommended by major medical organizations like the AAAAI.
- IgG antibodies are a normal immune response to eating food.
- High levels may actually indicate tolerance, not sensitivity.
- High rate of false positives leads to unnecessary dietary restrictions.
Elimination Diet
The "Gold Standard" for diagnosis
While it requires more effort, this is the most reliable way to identify food triggers.
- Tests your body's actual reaction in real-time.
- Identifies all types of reactions (allergies, intolerances, sensitivities).
- Cost-effective and safe when done correctly.
Comparison of Testing Methods
| Test Type | What it Measures | Best Used For | Reliability |
|---|---|---|---|
| Elimination Diet | Actual physical symptoms | Sensitivities, Intolerances | High |
| IgE Blood Test | IgE Antibodies | True Food Allergies (Anaphylaxis) | High |
| Skin Prick Test | Skin reaction to allergens | Environmental & Food Allergies | High |
| IgG Blood Test | IgG Antibodies | Nothing (Not recommended) | Low |
| Hair Analysis | Mineral content | Nothing (Unproven for allergies) | Low |