Food Allergy and Sensitivity Testing (FAST 88 Foods: IgE with IgG4) by Infinite Allergy Labs Vs Polymerase Chain Reaction Testing

Food allergies and sensitivities are becoming increasingly common in today's society. Many individuals struggle with symptoms such as stomach pain, skin rashes, and respiratory issues after consuming certain foods. To identify the specific triggers causing these reactions, various testing methods are available. This article will provide an in-depth comparison of two popular approaches: Food Allergy and Sensitivity Testing (FAST 88 Foods: IgE with IgG4) by Infinite Allergy Labs and Polymerase Chain Reaction (PCR) Testing.

Understanding Food Allergies and Sensitivities

Allergies and sensitivities to food can have a significant impact on an individual's quality of life. It is crucial to understand the difference between the two:

Food allergies and sensitivities are common conditions that affect millions of people worldwide. They can cause a range of symptoms, from mild discomfort to life-threatening reactions. Let's delve deeper into the intricacies of food allergies and sensitivities to gain a better understanding.

What is a Food Allergy?

A food allergy is an immune system response to certain proteins in food. When a person with a food allergy consumes an allergenic food, their immune system recognizes these proteins as harmful invaders and releases specific antibodies called immunoglobulin E (IgE). This triggers an allergic reaction that can range from mild symptoms such as hives, itching, or swelling to severe reactions like anaphylaxis.

Anaphylaxis is a severe and potentially life-threatening allergic reaction that affects multiple systems in the body. It can cause difficulty breathing, a drop in blood pressure, and loss of consciousness. Immediate medical attention is crucial in such cases, as anaphylaxis can be fatal if not treated promptly.

Common allergenic foods include peanuts, tree nuts, shellfish, fish, eggs, milk, soy, and wheat. Even trace amounts of these allergens can trigger an allergic reaction in susceptible individuals. Therefore, people with food allergies must be vigilant in reading food labels and avoiding cross-contamination.

What is a Food Sensitivity?

Food sensitivity, also known as a food intolerance, is a non-allergic adverse reaction to a particular food. Unlike food allergies, it does not involve the immune system or IgE antibodies. Instead, food sensitivities may stem from enzyme deficiencies, such as lactose intolerance or sensitivity to food additives, such as sulfites.

Lactose intolerance is a common example of a food sensitivity. It occurs when the body lacks the enzyme lactase, which is responsible for breaking down lactose, the sugar found in milk and dairy products. Without enough lactase, undigested lactose passes into the large intestine, where it ferments and causes symptoms like bloating, gas, and diarrhea.

Food additives, such as sulfites, can also trigger sensitivities in some individuals. Sulfites are commonly used as preservatives in foods and beverages, particularly in dried fruits, wine, and processed meats. People who are sensitive to sulfites may experience symptoms like headaches, flushing, or difficulty breathing after consuming foods containing these additives.

It is important to note that food sensitivities are not life-threatening like food allergies, but they can still significantly impact a person's well-being and quality of life. Identifying and avoiding trigger foods is key to managing food sensitivities and minimizing symptoms.

In conclusion, understanding food allergies and sensitivities is crucial for individuals who suffer from these conditions. While food allergies involve the immune system and can lead to severe reactions, food sensitivities are non-allergic adverse reactions that can cause discomfort and digestive issues. Both conditions require careful attention to dietary choices and proper management to ensure a healthy and enjoyable life.

An Introduction to Food Allergy and Sensitivity Testing

Testing for food allergies and sensitivities is essential for accurate diagnosis and appropriate management. Let's dive into why testing is crucial and explore the common methods used:

The Importance of Testing

Obtaining an accurate diagnosis through testing is vital for several reasons. Firstly, it helps identify specific trigger foods, allowing individuals to avoid them and prevent allergic reactions. For example, someone who is allergic to peanuts can avoid consuming any products that contain peanuts, reducing the risk of an allergic reaction.

Secondly, testing provides guidance for managing allergies and sensitivities, ensuring individuals maintain a balanced diet while avoiding harmful foods. With the help of testing, individuals can work with healthcare professionals to create personalized meal plans that cater to their specific dietary needs. This ensures that they receive adequate nutrition while eliminating or minimizing exposure to allergens.

Lastly, testing helps differentiate between true allergies and sensitivities, aiding in appropriate treatment and care. While allergies involve an immune response triggered by specific foods, sensitivities may cause adverse reactions without involving the immune system. By identifying the type of reaction, healthcare professionals can recommend suitable treatment options and provide necessary support.

Common Methods of Testing

There are various methods for testing food allergies and sensitivities, each with its own pros and cons. Two popular approaches are the FAST 88 Foods: IgE with IgG4 test by Infinite Allergy Labs and Polymerase Chain Reaction (PCR) testing.

The FAST 88 Foods: IgE with IgG4 test is a comprehensive blood test that measures both IgE and IgG4 antibodies. IgE antibodies are associated with immediate allergic reactions, while IgG4 antibodies are linked to delayed reactions. This test can help identify both immediate and delayed food allergies, providing a more complete picture of an individual's sensitivities.

Polymerase Chain Reaction (PCR) testing, on the other hand, is a molecular technique that detects specific DNA sequences in food samples. This method can identify the presence of allergenic proteins in foods, even in trace amounts. PCR testing is highly sensitive and can detect allergens that may not be detected through other methods.

It's important to note that these are just two examples of food allergy and sensitivity testing methods. Other approaches, such as skin prick tests and elimination diets, may also be used depending on the individual's symptoms and medical history.

Detailed Overview of FAST 88 Foods: IgE with IgG4

The FAST 88 Foods: IgE with IgG4 test by Infinite Allergy Labs is a comprehensive testing method that identifies both IgE and IgG4 antibodies for up to 88 different foods. This test offers valuable insights into potential allergic and sensitivity triggers.

How the Test Works

The FAST 88 Foods test involves drawing a blood sample from the individual. This is typically done by a trained phlebotomist or healthcare professional. The blood sample is then carefully packaged and sent to the laboratory for analysis.

At the laboratory, highly skilled technicians begin the process of analyzing the blood sample. They separate the different components of the blood, including the plasma, red blood cells, and white blood cells. The plasma, which contains the antibodies, is then isolated for further testing.

The laboratory then analyzes the sample for the presence of IgE and IgG4 antibodies. IgE antibodies are associated with immediate allergic reactions, while IgG4 antibodies indicate delayed immune responses. By testing for both antibodies, the FAST 88 Foods test provides a comprehensive overview of an individual's immune response to various foods.

The technicians use state-of-the-art equipment and techniques to measure the levels of IgE and IgG4 antibodies in the plasma sample. This process involves the use of specific reagents and markers that bind to the antibodies, allowing for accurate measurement and analysis.

Once the analysis is complete, the results are carefully reviewed and verified by qualified laboratory professionals. The results are then compiled into a detailed report that provides information on the levels of IgE and IgG4 antibodies detected for each of the 88 tested foods.

What Foods are Tested?

The FAST 88 Foods test covers a wide range of common food allergens and sensitivities. The list of tested foods includes dairy products such as milk, cheese, and yogurt; gluten-containing grains like wheat, barley, and rye; various nuts including peanuts, almonds, and cashews; shellfish such as shrimp, crab, and lobster; a variety of fruits like apples, oranges, and strawberries; an assortment of vegetables including broccoli, carrots, and spinach, and many more.

By examining a broad spectrum of foods, this test helps identify triggers that individuals may not suspect. It provides a comprehensive understanding of an individual's immune response to a wide range of potential allergens and sensitivities.

Interpreting the Results

Once the laboratory completes its analysis, the results are sent to the healthcare provider. A qualified healthcare professional, such as an allergist or immunologist, interprets the results in conjunction with the individual's medical history and symptoms.

During the interpretation process, the healthcare professional takes into account the levels of IgE and IgG4 antibodies detected for each food. They also consider the individual's specific symptoms, previous allergic reactions, and other relevant factors. This evaluation helps guide the development of personalized dietary recommendations and avoidance strategies.

Based on the results, the healthcare provider may recommend eliminating certain foods from the individual's diet or implementing other measures to manage their allergies or sensitivities. They may also provide guidance on potential cross-reactivity between different allergens and offer strategies for minimizing exposure to known triggers.

It's important to note that the FAST 88 Foods test is just one tool in the overall diagnosis and management of food allergies and sensitivities. It should be used in conjunction with a thorough medical evaluation and consultation with a qualified healthcare professional.

Infinite Allergy Labs: A Pioneer in Allergy Testing

Infinite Allergy Labs is at the forefront of allergy testing, with a focus on accurate and reliable results. Let's explore their company profile and unique approach to allergy testing:

Company Profile

Infinite Allergy Labs is a leading diagnostic laboratory specializing in allergy and sensitivity testing. With state-of-the-art facilities and a dedicated team of experts, they provide high-quality testing services to healthcare professionals and their patients.

Their Approach to Allergy Testing

Infinite Allergy Labs prioritizes both IgE and IgG4 antibody testing to achieve a comprehensive understanding of an individual's immune response to allergenic substances. By examining both immediate and delayed reactions, their testing method offers a more complete picture of an individual's allergies and sensitivities.

Polymerase Chain Reaction Testing: An Alternative Approach

PCR Testing is an alternative method used to detect allergens and sensitivities. Let's delve into the science behind this approach and explore its pros and cons:

The Science Behind PCR Testing

Polymerase Chain Reaction (PCR) testing is a molecular biology technique that amplifies specific DNA segments. In the context of food allergy and sensitivity testing, PCR allows for the detection of allergenic proteins or genetic material present in food samples or a person's biological fluids.

Pros and Cons of PCR Testing

PCR Testing offers several advantages, such as high sensitivity, specificity, and the ability to detect trace amounts of allergens. However, it also has limitations, including a narrower scope of tested allergens and the inability to assess non-IgE-mediated reactions. PCR Testing is particularly useful in cases where specific allergenic proteins must be identified, as in detecting food fraud or cross-contamination in manufacturing facilities.

In conclusion, both FAST 88 Foods: IgE with IgG4 testing by Infinite Allergy Labs and Polymerase Chain Reaction (PCR) testing offer valuable insights into food allergies and sensitivities. The choice of testing method depends on individual needs, the suspected triggers, and the specific objectives of the diagnostic process. It is essential to work closely with healthcare professionals to determine the most suitable testing approach for accurate diagnosis and effective management.
Back to blog

Keto Paleo Low FODMAP Cert, Gut & Ozempic Friendly

1 of 12

Keto. Paleo. No Digestive Triggers. Shop Now

No onion, no garlic – no pain. No gluten, no lactose – no bloat. Low FODMAP certified.

Stop worrying about what you can't eat and start enjoying what you can. No bloat, no pain, no problem.

Our gut friendly keto, paleo and low FODMAP certified products are gluten-free, lactose-free, soy free, no additives, preservatives or fillers and all natural for clean nutrition. Try them today and feel the difference!