Alpha-Lactalbumin, IgG
Understanding Alpha-Lactalbumin, IgG
What is Alpha-Lactalbumin, IgG?
The Alpha-Lactalbumin, IgG test is a blood test that detects specific Immunoglobulin G (IgG) antibodies produced in response to alpha-lactalbumin, a protein found in milk and dairy products. This test is often part of broader food intolerance tests that assess IgG levels for various foods. This test is typically recommended for individuals who experience delayed symptoms such as bloating, abdominal discomfort, skin rashes, headaches, or fatigue after consuming milk or dairy-based foods. These symptoms may appear hours or even days after exposure, making it difficult to associate them directly with diet. This test is particularly helpful for people with suspected dairy intolerance or a family history of food sensitivities. By identifying the immune response to alpha-lactalbumin, the test enables doctors to recommend appropriate dietary adjustments and manage symptoms effectively. Detecting and addressing dairy-related intolerance early can help support better digestion and improve overall well-being.
What does Alpha-Lactalbumin, IgG measure?
The Alpha-Lactalbumin, IgG test detects Immunoglobulin G (IgG) antibodies specifically targeted against alpha-lactalbumin proteins. Alpha-lactalbumin is a major whey protein found in cow's milk. Elevated IgG levels indicate that the immune system may perceive this milk protein as a potential irritant, leading to a delayed hypersensitivity reaction. It is important to understand that this test doesn't diagnose allergy. It's more related to food sensitivities or intolerances, which are different from allergies and can be caused by a variety of factors, including difficulty digesting or metabolizing certain food stuffs. In contrast, food allergies are usually immediate and IgE-mediated and tested by other tests which measure allergen specific IgE . Identifying such immune responses can help pinpoint food triggers, enabling doctors to recommend personalized dietary changes.
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