Food Allergy and Sensitivity 88 Test (FAST 88 Foods Test: IgE, IgG4)

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Food sensitivities and allergies can affect your well-being in ways that are not always easy to recognize. The FAST 88 Foods test analyzes IgE and IgG4 responses to a variety of foods, offering a detailed view of how your body may be reacting. This information can help you make informed decisions about your diet. You can order a Food Allergy and Sensitivity Test or FAST 88 Foods Test IgE IgG4 online without a prescription.

Test Description

The Food Allergy and Sensitivity Test FAST 88 Foods Test IgE IgG4 measures two specific immune system markers, IgE and IgG4, in response to 88 commonly consumed foods.

IgE, or immunoglobulin E, is produced by the immune system during immediate allergic reactions. These reactions, which occur when the immune system mistakenly identifies certain foods as harmful, can cause symptoms such as hives, swelling, difficulty breathing, or anaphylaxis. Identifying IgE responses is crucial for avoiding foods that pose serious health risks.

IgG4, or immunoglobulin G4, is another antibody produced by the immune system, but it is associated with delayed responses to foods. These reactions, which can develop over hours or days, may contribute to symptoms such as digestive discomfort, headaches, joint pain, fatigue, or skin irritation. Unlike IgE, IgG4 responses are not life-threatening, but they can affect quality of life and may play a role in chronic symptoms.

Understanding these markers is important because they provide a detailed picture of how your immune system interacts with specific foods. IgE results identify immediate allergies that require strict avoidance, while IgG4 results can help pinpoint foods that may contribute to ongoing discomfort. This information is valuable for creating a personalized dietary plan to reduce symptoms and support overall health.

Markers

Almond: A tree nut that can cause allergies or sensitivities, leading to symptoms like itching, swelling, or stomach discomfort.
Apple: A fruit that may trigger mild reactions such as an itchy mouth or throat, often tied to pollen allergies.
Asparagus: A vegetable that could lead to digestive discomfort or skin irritation in people with sensitivities.
Aspergillus flavus: A type of mold that may cause allergies, especially in those with respiratory issues like asthma.
Aspergillus fumigatus: Another mold that can lead to allergy symptoms, often affecting the lungs or sinuses.
Aspergillus nidulans: A mold species that may trigger respiratory allergies or worsen pre-existing conditions.
Aspergillus niger: A mold that could cause sneezing, coughing, or other respiratory symptoms in sensitive people.
Avocado: A fruit that can cause reactions in some, especially those with a latex sensitivity.
Banana: A fruit that might cause itchy or swollen lips, particularly in people with latex or pollen allergies.
Barley: A grain containing gluten that can cause digestive issues or inflammation in sensitive people.
Beef: A protein that rarely causes allergies but may lead to symptoms like stomach upset or rashes in sensitive cases.
Black Pepper: A spice that could trigger mild digestive discomfort or irritation in some people.
Black Tea: A drink that might cause sensitivity-related symptoms, such as upset stomach or headaches.
Blueberry: A fruit that can occasionally cause mild allergic reactions, like skin rashes or itching.
Brazil Nut: A tree nut that is a common allergen and can sometimes lead to severe reactions, including trouble breathing.
Broccoli: A vegetable that may cause bloating or mild irritation in people with sensitivities.
Buckwheat: A seed that can trigger symptoms like itching, swelling, or breathing difficulties in rare cases.
Cabbage: A vegetable that might lead to digestive discomfort in people sensitive to cruciferous foods.
Candida albicans: A type of yeast that, when overgrown, may contribute to issues like fatigue or digestive problems.
Cantaloupe: A melon that can cause mild allergy symptoms like an itchy mouth, especially in those with pollen allergies.
Carrot: A root vegetable that may lead to an itchy throat or mouth in people with certain pollen allergies.
Casein: A protein in dairy that can trigger allergic or digestive issues in people sensitive to milk.
Cashew: A tree nut that may cause symptoms ranging from mild itching to severe reactions like swelling or trouble breathing.
Cauliflower: A vegetable that could lead to mild bloating or irritation in some people.
Celery: A vegetable that is a common trigger for oral allergy syndrome, causing itching or swelling in the mouth.
Cherry: A fruit that might cause mild reactions, such as itching or swelling, in those sensitive to pollen.
Chicken: A protein that rarely causes allergies but can sometimes lead to digestive upset or skin irritation.
Chicken Egg White: A common allergen, particularly in children, causing symptoms like hives or digestive issues.
Chicken Egg Yolk: A less common trigger than egg whites but still capable of causing allergic symptoms in some people.
Cinnamon: A spice that might lead to mild skin irritation or stomach upset in sensitive cases.
Cocoa Bean: The base of chocolate, which can occasionally cause headaches or mild sensitivities.
Coconut: A fruit that can cause reactions ranging from skin irritation to digestive upset, though true allergies are rare.
Codfish: A fish that is a common allergen, often causing symptoms like hives or breathing difficulties.
Coffee: A drink that may trigger sensitivity symptoms such as stomach discomfort or jitters in some people.
Cottonseed: A seed that could cause rare allergic reactions, often tied to processed foods.
Cow Milk: A common allergen that can lead to symptoms like skin rashes, digestive discomfort, or congestion.
Crab: A shellfish that is a frequent allergen, sometimes causing severe reactions like swelling or trouble breathing.
Cranberry: A fruit that rarely triggers allergies but may cause mild symptoms like stomach upset.
Cucumber: A vegetable that can cause itching or swelling in the mouth, especially in people with pollen allergies.
English Walnut: A tree nut that is a common allergen, with reactions ranging from mild itching to severe swelling.
Flaxseed: A seed that might cause digestive discomfort or mild allergic symptoms in sensitive people.
Flounder: A fish that may trigger allergy symptoms, especially in people with seafood sensitivities.
Garlic: A food that can cause digestive discomfort or skin irritation in people with sensitivities.
Ginger: A root that might cause mild reactions, such as stomach upset, in sensitive people.
Gluten: A protein in wheat, barley, and rye that can cause digestive or immune reactions in those with gluten sensitivity or celiac disease.
Goat Milk: A dairy alternative that may still cause reactions in people sensitive to milk proteins.
Grapefruit: A citrus fruit that might lead to mild allergic symptoms like skin irritation or digestive upset.
Green Olive: A fruit that can occasionally cause mild reactions, such as an upset stomach or itching.
Green Pea: A legume that may trigger allergic reactions, particularly in people allergic to peanuts or other legumes.
Green Pepper: A vegetable that can cause mild digestive discomfort or irritation in people with sensitivities.
Halibut: A fish that can cause allergic reactions in people sensitive to seafood, leading to symptoms like hives or upset stomach.
Hazelnut: A common tree nut allergen that can cause itching, swelling, or more serious reactions like trouble breathing.
Hops: A plant used in beer-making that might cause mild allergies, such as itchy skin or sneezing, in some people.
Kidney Bean: A legume that can occasionally cause digestive discomfort or allergic symptoms in sensitive people.
Lamb: A protein that rarely causes allergies but can sometimes lead to mild skin irritation or stomach upset.
Lemon: A citrus fruit that can cause mouth irritation or mild digestive issues in people with sensitivities.
Lettuce: A leafy vegetable that may cause rare allergic reactions, such as itching or upset stomach.
Lobster: A shellfish allergen that can lead to severe reactions, including swelling, hives, or breathing problems.
Mackerel: A fish that can cause allergy symptoms like itchy skin, swelling, or breathing difficulties in sensitive people.
Malt: A grain product that may cause digestive discomfort in those with gluten sensitivity or barley allergies.
Mushroom: A type of fungus that can lead to mild allergic reactions, such as sneezing or an itchy throat.
Mustard Seed: A spice that can cause allergies, often leading to skin rashes, digestive issues, or even breathing problems.
Navy Bean: A legume that might cause digestive upset or mild allergy symptoms in some people.
Nutmeg: A spice that may rarely cause mild irritation or stomach discomfort in sensitive cases.
Oats: A grain that may lead to digestive symptoms or skin irritation in people with gluten sensitivity or oat allergies.
Onion: A vegetable that might cause stomach upset or mild allergic reactions like itching or swelling.
Orange: A citrus fruit that can trigger mild allergic symptoms, such as mouth irritation or itchy skin.
Oyster: A shellfish that is a common allergen, potentially causing hives, upset stomach, or breathing difficulties.
Peach: A fruit that can cause an itchy mouth or throat, often in people with pollen allergies.
Peanut: A common allergen that can cause reactions ranging from mild itching to severe breathing issues.
Pear: A fruit that can trigger mild reactions like itching or swelling, especially in people with pollen sensitivities.
Pecan: A tree nut that may cause allergic symptoms, including skin irritation or breathing trouble.
Pineapple: A fruit that can sometimes cause mouth irritation or stomach discomfort, often linked to its enzymes.
Pistachio Nut: A tree nut that can cause allergic reactions, such as itching, swelling, or difficulty breathing.
Plum: A fruit that can lead to mild allergic reactions, such as an itchy mouth or throat.
Pork: A protein that rarely causes allergies but might lead to mild skin rashes or stomach upset in sensitive people.
Raspberry: A fruit that can sometimes trigger mild symptoms like itching or digestive upset.
Rice: A grain that rarely causes allergies but may result in mild skin or digestive symptoms.
Rye: A grain that contains gluten and may cause symptoms in people with gluten sensitivity or celiac disease.
Salmon: A fish that can cause allergic reactions, including skin rashes, hives, or breathing issues.
Scallops: A shellfish that may cause symptoms like itching, swelling, or upset stomach in people with allergies.
Sesame: A seed that is a common allergen, often causing skin rashes, stomach upset, or more serious symptoms.
Shrimp: A shellfish allergen that can lead to reactions like itching, swelling, or breathing problems.
Soybean: A legume that may cause digestive issues or allergic reactions, including skin rashes or respiratory symptoms.
Spinach: A leafy green that might cause mild allergic symptoms, such as an itchy mouth or upset stomach.
Strawberry: A fruit that can trigger mild reactions like skin irritation or itching, especially in sensitive people.
String Bean: A legume that may rarely cause mild digestive discomfort or skin irritation.
Sweet Corn: A grain that might lead to mild allergy symptoms, such as itching or upset stomach.
Sweet Potato: A root vegetable that rarely causes allergies but may result in mild digestive issues.
Tomato: A vegetable that can cause mild reactions like itching or stomach discomfort, often in people sensitive to nightshades.
Tuna: A fish that can lead to allergy symptoms, such as skin rashes or breathing difficulties, in sensitive people.
Turkey: A protein that rarely triggers allergies but might cause mild digestive upset in some cases.
Vanilla: A flavoring that might cause mild irritation or stomach discomfort in people with sensitivities.
Watermelon: A fruit that can sometimes cause an itchy mouth or mild digestive symptoms, often linked to pollen allergies.
Wheat: A grain that can cause digestive or skin symptoms in people with wheat allergies or gluten intolerance.
White Grape: A fruit that may cause mild reactions, such as itching or an upset stomach, in rare cases.
White Potato: A starchy vegetable that can sometimes cause mild reactions in people sensitive to nightshades.
Yeast: A fungus that might lead to digestive issues or skin irritation in sensitive individuals.
Yellow Squash: A vegetable that can occasionally cause mild symptoms like stomach upset or itching.
Zucchini: A type of squash that might trigger mild digestive discomfort or skin irritation in some people.

Who Should Consider This Test?

People with unexplained symptoms: This test is ideal for those dealing with persistent symptoms like stomach discomfort, rashes, or fatigue that don’t have an obvious cause. It can help identify whether immune responses to specific foods are contributing to these issues.
People with suspected food allergies: For those who experience immediate reactions like itching, swelling, or breathing difficulties after eating, the FAST 88 Foods Test IgE IgG4 test can confirm whether IgE-mediated allergies are present. Understanding these triggers is crucial to avoiding severe or life-threatening reactions.
People with delayed food sensitivities: This test is helpful for those who notice symptoms like bloating, headaches, or fatigue hours or even days after eating certain foods. It provides insights into IgG4-mediated responses that might otherwise go undetected.
People with multiple food-related symptoms: Those who suspect that several foods are causing issues like stomach pain, skin irritation, or other discomforts can use this test to pinpoint which foods are involved. It simplifies the process of identifying triggers without relying solely on guesswork.
People managing chronic conditions: This test is useful for people with conditions such as eczema, irritable bowel syndrome, or migraines, which may be aggravated by food reactions. Understanding food sensitivities can help in managing these conditions more effectively.
People with family history of allergies: For those with a family history of food allergies or sensitivities, the FAST 88 Foods Test IgE IgG4 test can reveal if they are also reacting to common food triggers. Early detection can help reduce the risk of severe reactions by guiding dietary choices.
People undergoing elimination diets: This test can streamline the elimination process by identifying foods that are likely contributing to symptoms. It helps individuals make informed choices without the trial-and-error approach of traditional elimination diets.
People with seasonal or environmental allergies: Those who already experience allergies to pollen, mold, or dust may also have food sensitivities or cross-reactive triggers. A FAST 88 Foods Test IgE IgG4 test can help identify whether certain foods are contributing to their symptoms.
Parents of children with suspected allergies: For children showing signs of food-related reactions, such as rashes, upset stomach, or breathing difficulties, this test can provide valuable information. Early identification helps parents manage their child’s diet safely and effectively.
People with autoimmune conditions: Those with conditions like rheumatoid arthritis, lupus, or Hashimoto’s thyroiditis may find this test useful for identifying foods that could be triggering inflammation or worsening symptoms. Modifying the diet based on test results can support better overall management.
People recovering from chronic infections: Individuals recovering from infections like Candida overgrowth or gastrointestinal infections may benefit from understanding how certain foods impact their immune system. The test can guide dietary choices that promote healing.
Athletes or people optimizing performance: This test can help athletes or highly active people identify foods that may be causing subtle symptoms like fatigue or inflammation, which could affect their performance or recovery. Adjusting the diet based on test results can enhance energy and efficiency.
People experiencing frequent gastrointestinal issues: Those with symptoms like bloating, diarrhea, or abdominal pain that have not been resolved through standard testing might discover food triggers with this test. It provides a more personalized understanding of dietary impacts on gut health.
People with recurrent skin conditions: Those suffering from chronic skin issues like hives, acne, or eczema may find relief by identifying foods that are triggering immune responses. This test helps connect skin symptoms to specific dietary factors.
People transitioning to new dietary patterns: Those adopting a new diet, such as plant-based or gluten-free, may use this test to understand how their immune system responds to different foods. It helps ensure the new diet is aligned with their body’s needs.
People with chronic sinus or respiratory issues: Those with ongoing congestion, sinus infections, or asthma may benefit from identifying food-related immune triggers. Certain foods can exacerbate inflammation or aggravate respiratory symptoms.
People with unexplained weight changes: For those experiencing unexplained weight gain, loss, or difficulty maintaining weight, food sensitivities or allergies might be playing a role. This test can help pinpoint foods that could be impacting metabolism or appetite.
People with fatigue or low energy levels: Persistent fatigue or sluggishness might be linked to immune responses to certain foods. Testing can uncover hidden food sensitivities that may be draining energy levels.
People with mood or neurological symptoms: Those experiencing anxiety, brain fog, or headaches might find that certain foods contribute to these issues. The FAST 88 Foods Test IgE IgG4 test can help uncover potential triggers affecting mental clarity or emotional well-being.
People with recurrent infections or immune dysfunction: Frequent infections or difficulty recovering from illnesses could indicate an overburdened immune system. Identifying and avoiding reactive foods may help reduce immune system strain.
People exploring anti-inflammatory diets: Those looking to reduce inflammation for better health may use this test to tailor their diet by avoiding foods that provoke immune responses. It can guide the personalization of anti-inflammatory eating plans.
People with food aversions or discomfort after eating: Those who feel unwell or avoid certain foods without knowing why may benefit from understanding whether immune responses are involved. The test provides clarity on whether these foods should be included or avoided.
People preparing for pregnancy or managing fertility issues: Those trying to conceive or optimize fertility may find it helpful to address food-related immune responses that could impact hormonal or reproductive health. A personalized diet can support overall well-being during this time.
People with joint or muscle pain: Chronic pain or stiffness in joints or muscles might be linked to inflammation triggered by food sensitivities. This test helps identify possible dietary contributors to discomfort.
People seeking long-term health optimization: Even those without obvious symptoms might choose this test to better understand their body’s unique responses to food. The insights can support preventive care and overall health maintenance.

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The information provided in this article is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Functional medical tests and nutrition-related labs should be used as tools to support health and wellness under the guidance of a qualified healthcare provider. Results from these tests should not replace professional medical advice or be interpreted without consulting a licensed practitioner familiar with your health history and needs. Always consult your doctor or dietitian before making changes to your diet, supplements, or health management plan.