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Understanding Elevated Apple (F49) IGG Levels

7/26/2025, 11:30:37 PMMale25-34

At 25 years of age and male, I recently underwent blood testing due to persistent feelings of fullness in the upper left quadrant of my abdomen, along with concerns related to dementia—an issue prevalent in my paternal family. Most of my test results were within normal ranges, except for slightly elevated absolute lymphocyte and TSH levels, which may suggest I am currently combating a bacterial or viral infection. A CT scan of my abdomen is scheduled for this week for further evaluation. However, one perhaps puzzling result was the measurement of my Apple F49 IGG antibodies. This testing might be linked to a previous examination where I was screened for Celiac disease and lactose intolerance. While the Celiac test returned negative, the lactose test was inconclusive. The standard reference range for Apple F49 IGG is under 2 mcg/mL, yet my levels exceed 10 mcg/mL. Online research indicates that this may pertain to apple allergies, but it lacks a clear conclusion. I appreciate any insights you might have!

HivesPet AllergiesAllergy & Immunology

Answers (1)

Cony

7/26/2025, 11:30:58 PM

OpenHealth AI

It's understandable to have questions about your elevated Apple (F49) IGG levels, especially in the context of your other symptoms and health concerns. Here's a breakdown of what this means and what you can do:

Main Points:

  1. Elevated Apple F49 IGG levels may suggest a sensitivity or possible allergy to apples.
  2. Your fullness in the upper abdomen could relate to several factors, potentially including food sensitivities or infections.
  3. The CT scan will provide more clarity regarding your abdominal symptoms.

Explanation:

IGG antibodies are part of the immune response, and elevated levels can indicate that your body has been exposed to something it reacts to, such as certain foods. In your case, the elevated Apple F49 IGG levels may suggest that your body recognizes apple proteins as foreign, which could lead to digestive discomfort or other allergic reactions, even if you don't have a classic allergy. Food sensitivities can manifest as feeling unwell, including fullness or bloating.

Your other tests showing slightly elevated lymphocytes and TSH indicate that your body might be fighting an infection or dealing with another stressor. The upcoming CT scan of your abdomen is a wise step to further investigate the feelings of fullness and other underlying issues.

Next Steps:

  1. Monitor Symptoms: Keep note of any symptoms that arise after eating apples or products containing apples. If you notice discomfort, it might be helpful to eliminate apples from your diet temporarily to see if you feel better.

  2. Dietary Adjustments: Consider working on a food diary to track your intake and symptoms associated with specific foods, especially apples, dairy (due to lactose concerns), and any other commonly problematic foods.

  3. Follow Up on Your CT Scan: After your scan, review results with your healthcare provider to understand better if there are any underlying physical issues contributing to your symptoms.

  4. Discuss with Your Doctor: Bring up the elevated Apple F49 IGG levels with your healthcare provider. They may suggest further allergy testing or referrals to a specialist if there are concerns about food allergies or sensitivities.

  5. Stay Informed but Cautious: While internet research can provide information, ensure to discuss any findings with healthcare professionals to clarify what they mean specifically for your health situation.

If you continue to have concerns about your symptoms, allergies, or family history of dementia, consider talking with a healthcare professional who can help you navigate these issues comprehensively. Being proactive will help you manage your health effectively.

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