Understanding IgG and IgE: Unraveling Food Sensitivities and Allergies

When faced with unexplained symptoms after eating, it can be challenging to identify the culprit food. That's where understanding the differences between IgG and IgE tests can provide valuable insights. Both IgG and IgE antibody levels indicate an allergic reaction, but they have distinct characteristics. In this blog post, we'll explore the disparities between these reactions and how IgG and IgE tests can help identify food sensitivities and allergies.

To comprehend the disparity between IgG and IgE, let's first understand what these antibodies are. When the body perceives a foreign substance as a threat, the immune system triggers a response like fighting off an illness. Immunoglobulins, a class of protective antibodies, are the body's defense mechanism. Two immunoglobulins are associated with food-related reactions: IgG, and IgE.

IgG: The Food Sensitivity Test:

If you experience sporadic symptoms such as stomach discomfort or headaches, you may be dealing with food sensitivity. While the exact mechanisms behind food sensitivities are not yet fully understood, IgG antibodies are thought to play a significant role. IgG-based immune reactions are slower compared to allergies, but they can still cause considerable discomfort.

Common IgG-related symptoms include:

1. Digestive issues

2. Headaches

3. Fatigue

4. Joint pain

5. Skin problems

To identify potential food sensitivities, an IgG blood test can provide valuable insights. By receiving the test results, you can embark on a two-part elimination diet or a temporary elimination and add-back challenge to determine if a specific food triggers your IgG-related food sensitivity.

Common foods associated with IgG-related intolerances include:

1. Lactose or dairy

2. Eggs

3. Peanuts

4. Shellfish

5. Corn

6. Soy

7. Gluten

8. Yeast

9. Coffee

IgE: The Allergy Test:

Immediate reactions like hives, rashes, or difficulty breathing after consuming a particular food are indicative of an IgE immune response. IgE antibodies are the body's primary defense against foreign substances that it perceives as threats. The immune system quickly deploys IgE antibodies to trigger a direct allergic reaction, usually more severe and immediate than a food sensitivity.

Common IgE-related symptoms include:

1. Breathing issues and asthma

2. Skin inflammation and eczema

3. Swelling of facial tissues, tongue, or limbs

4. Itchy or tingling mouth

5. Nasal drip or congestion

6. Digestive problems

7. Dizziness and lightheadedness

8. Anaphylaxis (a potentially life-threatening reaction)

While food allergies are often associated with specific foods, IgE reactions can also be triggered by non-food substances like pollen, animal dander, or dust mites.

Types of testing you normally done for these antibodies:

1. Food Sensitivity Test and Food Sensitivity Comprehensive Test for food-related IgG testing

2. At-Home Food Allergy Test for food-related IgE testing

3. Indoor & Outdoor Allergy Test for non-food-related IgE allergy testing

Understanding the differences between IgG and IgE reactions is crucial in identifying and managing food sensitivities and allergies. By utilizing tests you can gain valuable insights into your body's immune responses. Armed with this knowledge, you can make informed decisions.

For more information, check out my Alternative Health Memberships.

These statements have not been evaluated by the FDA. This is not intended to diagnose, treat, cure, or prevent disease.

Source: Everlywell

Photo by cottonbro studio @pexels