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Food Sensitivity Tests: What You Need to Know

USAThursday, November 13, 2025
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Food sensitivity tests are gaining popularity, but experts caution that they may not be as beneficial as people believe. These tests often claim to identify foods that cause discomfort, but scientific backing is lacking.

The Unclear Nature of Food Sensitivity

Many people experience bloating, headaches, or fatigue after consuming certain foods, leading them to suspect a food sensitivity. However, food sensitivity is not a well-defined medical term. It is often used to describe symptoms that do not fit into clear categories like allergies or intolerances.

The IgG Antibody Test: What It Really Means

Some tests measure IgG antibodies, which are part of the immune system. However, these antibodies do not indicate whether someone has a food sensitivity or allergy. In fact, higher levels of these antibodies might simply mean your body is accustomed to that food.

Potential Harm of These Tests

Experts warn that these tests can be more harmful than helpful. They may lead people to avoid healthy foods unnecessarily, potentially causing nutrient deficiencies, especially for those with a history of disordered eating.

A Better Approach

Instead of relying on these tests, it is better to consult a doctor. Keeping a food diary to track what you eat and how you feel can help. A medical professional can determine if there is a real issue and guide you on the next steps.

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