Food Allergy and Sensitivity 88 Test (FAST 88 Foods Test: IgG, C3d, C3b)

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Understanding how your body reacts to certain foods is key to improving your health and well-being. The Food Allergy and Sensitivity Test (FAST), also known as the 88 Foods Test IgG C3d C3b, helps identify foods that may trigger adverse reactions. This comprehensive test examines your immune response to 88 common foods, providing detailed insights into your sensitivities. Whether you’re managing symptoms like bloating, fatigue, or skin issues, or simply aiming to optimize your diet, this test offers the clarity you need. You can order a the Food Allergy and Sensitivity Test or FAST 88 Foods Test IgG C3d C3b online without a prescription.

Test Description

The Food Allergy and Sensitivity Test (FAST), also known as the 88 Foods Test IgG C3d C3b test or FAST 88 Foods Test IgG C3d C3b, measures two markers of your immune system’s response to foods: IgG antibodies and complement proteins (C3b and C3d).

IgG antibodies are produced by your immune system when it identifies certain foods as foreign, even if they are not harmful. Elevated IgG levels indicate a delayed immune response that may contribute to symptoms such as bloating, fatigue, joint pain, or skin issues.

Complement proteins, specifically C3b and C3d, are part of your immune system’s defense mechanism. They enhance inflammation and immune activity when triggered by certain foods. Measuring complement activation helps identify foods that may cause a stronger immune response, leading to inflammation or discomfort.

By analyzing both IgG antibodies and complement activity, this test provides a more complete picture of how your immune system interacts with 88 common foods. This detailed information helps uncover hidden food sensitivities that may be linked to chronic symptoms, allowing for targeted dietary adjustments to support better health.

Markers

Almond: A crunchy, nutritious snack that some people’s immune systems mistakenly react to, leading to symptoms like bloating or skin irritation.
Apple: A sweet and juicy fruit that can occasionally cause mild reactions, such as an itchy mouth or digestive discomfort.
Asparagus: A healthy vegetable that might not sit well for some, leading to tummy troubles like bloating.
Aspergillus flavus: A type of mold often found in the environment that can bother those sensitive to mold, sometimes causing respiratory or immune responses.
Aspergillus fumigatus: Another common mold that may trigger reactions in people who are sensitive, especially in their breathing.
Aspergillus nidulans: A less common mold that can still irritate those with sensitivities, causing mild to moderate immune responses.
Aspergillus niger: A type of mold that might make sensitive people feel unwell, often affecting breathing or skin.
Avocado: A creamy favorite for many, but it can occasionally lead to stomach discomfort or itching for some.
Banana: A go-to snack for energy, though it might trigger mild reactions like bloating or itching in some people.
Barley: A grain packed with nutrients but not always friendly to sensitive stomachs, especially for those sensitive to gluten.
Beef: A hearty protein source that can occasionally cause fatigue or stomach upset in sensitive people.
Black Pepper: A common spice that adds flavor but might irritate sensitive stomachs or cause minor allergic reactions.
Black Tea: A comforting drink that, for some, can lead to headaches or stomach unease.
Blueberry: A sweet and nutritious fruit that might cause mild digestive or skin irritation in rare cases.
Brazil Nut: A rich and buttery nut that can trigger anything from mild skin irritation to more severe reactions in those sensitive.
Broccoli: A fiber-packed veggie that sometimes leads to bloating or mild stomach upset for sensitive eaters.
Buckwheat: A gluten-free grain that’s gentle for many but can still bother some people’s immune systems.
Cabbage: A crunchy, versatile veggie that can sometimes cause bloating or mild stomach trouble.
Candida albicans: A type of yeast naturally present in the body but can become an issue if it grows too much, leading to fatigue or digestive problems.
Cantaloupe: A sweet melon that might occasionally lead to itching or stomach unease for some.
Carrot: A crunchy snack that may cause minor reactions like an itchy mouth or tummy discomfort.
Casein: A protein in milk that’s great for many but can cause bloating or digestive trouble in those who react to it.
Cashew: A creamy, nutrient-dense nut that can lead to anything from mild discomfort to allergic reactions in sensitive people.
Cauliflower: A versatile veggie that sometimes leads to bloating or mild digestive upset.
Celery: A crisp, refreshing snack that might cause mild itching or irritation in sensitive eaters.
Cherry: A sweet, summery fruit that can occasionally trigger mild allergic reactions like itching or stomach upset.
Chicken: A popular protein that might cause mild reactions or digestive discomfort in some people.
Chicken Egg White: A part of the egg that’s common in diets but may lead to itchy skin or digestive issues in those with sensitivities.
Chicken Egg Yolk: Another part of the egg that can occasionally cause mild stomach upset or inflammation.
Cinnamon: A warming spice that might irritate the stomach or skin for some people.
Cocoa Bean: The key to chocolate’s goodness, but it can sometimes cause headaches or mild reactions for sensitive people.
Coconut: A tropical treat that may cause mild reactions like itchy skin or stomach unease in some.
Codfish: A nutritious seafood choice that can occasionally lead to digestive trouble or mild allergic reactions.
Coffee: A beloved beverage that might cause jitters or stomach upset for some sensitive drinkers.
Cottonseed: A seed that’s less common in diets but can still lead to mild immune responses in some.
Cow Milk: A staple in many diets but may cause bloating or digestive trouble for people sensitive to its proteins.
Crab: A shellfish that’s delicious for most but can provoke anything from mild itching to severe reactions in others.
Cranberry: A tart fruit that’s great for many but may occasionally cause stomach unease or mild irritation.
Cucumber: A refreshing veggie that’s gentle on most but might irritate sensitive stomachs.
English Walnut: A flavorful nut that can cause mild to severe reactions for those with nut sensitivities.
Flaxseed: A tiny seed packed with nutrients that might cause digestive trouble or mild allergic responses for some.
Flounder: A mild fish that’s usually well-tolerated but can trigger skin or stomach reactions in a few.
Garlic: A flavor-packed kitchen staple that can occasionally cause digestive upset or immune responses.
Ginger: A spicy root that’s soothing for many but might cause mild digestive discomfort in some people.
Gluten: A protein in wheat, barley, and rye that can trigger anything from bloating to more significant immune responses.
Goat Milk: A creamy alternative to cow’s milk, but it can still cause reactions like bloating or skin irritation in some.
Grapefruit: A tangy citrus fruit that might lead to mild itching or stomach upset in rare cases.
Green Olive: A salty snack that’s usually well-tolerated but can occasionally irritate the stomach or cause mild reactions.
Green Pea: A sweet, nutritious veggie that might cause digestive trouble or mild skin irritation in some.
Green Pepper: A crunchy veggie that’s easy on most but might cause mild stomach discomfort in sensitive eaters.
Halibut: A mild, flaky fish that can occasionally cause digestive discomfort or skin reactions for those sensitive.
Hazelnut: A rich, flavorful nut that can trigger anything from mild irritation to severe allergic reactions in sensitive people.
Hops: A key ingredient in beer that might cause stomach upset or mild immune responses in some people.
Kidney Bean: A protein-rich legume that can sometimes lead to bloating or mild digestive discomfort.
Lamb: A tender meat option that might cause mild reactions like fatigue or stomach unease in some.
Lemon: A tangy citrus fruit that can occasionally cause mouth irritation or digestive upset.
Lettuce: A light, crisp veggie that’s gentle for most but might cause minor stomach upset in rare cases.
Lobster: A shellfish that’s a delicacy for many but can provoke mild to severe reactions in those sensitive to shellfish.
Mackerel: A rich, oily fish that might cause mild reactions like skin irritation or digestive issues for some.
Malt: A sweetened grain product, often from barley, that can lead to bloating or immune responses, especially in those sensitive to gluten.
Mushroom: A savory fungi that may cause mild reactions like itching or digestive trouble in some people.
Mustard Seed: A spicy seed used in condiments that can trigger mild to severe reactions in sensitive people.
Navy Bean: A small, protein-packed legume that might cause bloating or mild digestive discomfort in some.
Nutmeg: A warming spice that can occasionally lead to skin or stomach irritation in sensitive eaters.
Oats: A hearty grain that’s gluten-free but may still cause mild reactions in some people.
Onion: A pungent veggie that might cause stomach upset or mild irritation in those with sensitivities.
Orange: A juicy, sweet citrus fruit that can occasionally cause itching or digestive discomfort.
Oyster: A shellfish that’s rich in nutrients but may provoke immune responses like stomach upset or skin irritation in sensitive people.
Peach: A soft, sweet fruit that can cause mild reactions like oral itching or stomach upset in some.
Peanut: A legume that can lead to anything from mild skin irritation to severe allergic reactions.
Pear: A juicy fruit that’s generally gentle but might cause mild digestive trouble or skin irritation in some people.
Pecan: A buttery, rich nut that can occasionally cause mild to severe immune responses in sensitive people.
Pineapple: A tropical fruit that can irritate the mouth or cause mild digestive upset in some people.
Pistachio Nut: A vibrant green nut that might trigger mild to severe allergic reactions in sensitive people.
Plum: A juicy fruit that can sometimes lead to mild digestive discomfort or itching in some people.
Pork: A protein-rich meat that might occasionally cause mild immune responses or stomach upset.
Raspberry: A tart, nutrient-rich berry that can lead to mild reactions like itching or digestive trouble in some.
Rice: A gentle, widely consumed grain that might cause mild reactions in rare cases.
Rye: A grain that contains gluten and might cause digestive or immune responses in sensitive people.
Salmon: A popular fish packed with healthy fats but can occasionally lead to mild reactions like skin irritation or stomach upset.
Scallops: A type of shellfish that can provoke mild to severe reactions, including digestive discomfort, in those sensitive.
Sesame: A tiny seed with big flavor that can trigger mild to severe reactions in people with sensitivities.
Shrimp: A popular seafood that might cause anything from mild skin irritation to severe allergic reactions.
Soybean: A versatile legume that can cause digestive discomfort or immune responses in some people.
Spinach: A leafy green packed with nutrients but might lead to mild stomach upset or skin irritation in rare cases.
Strawberry: A sweet and juicy berry that can occasionally cause mild skin or digestive reactions.
String Bean: A crunchy veggie that’s usually gentle but might irritate sensitive stomachs.
Sweet Corn: A starchy veggie that can sometimes cause bloating or mild immune responses.
Sweet Potato: A nutritious root veggie that might cause mild digestive discomfort in some.
Tomato: A versatile fruit that can lead to mild reactions like stomach upset or skin irritation in some people.
Tuna: A popular fish that can occasionally trigger mild to moderate allergic reactions.
Turkey: A lean protein option that might cause mild reactions or digestive discomfort in sensitive eaters.
Vanilla: A common flavoring that can occasionally cause mild skin or stomach irritation.
Watermelon: A hydrating fruit that might trigger mild reactions like itching or digestive upset in some.
Wheat: A staple grain that contains gluten and can cause digestive or immune responses in people with sensitivities.
White Grape: A sweet and juicy fruit that can occasionally cause mild skin or stomach irritation.
White Potato: A starchy favorite that’s easy on most but might cause mild bloating or stomach upset in sensitive eaters.
Yeast: A common ingredient in bread and other baked goods that might trigger mild immune responses in some people.
Yellow Squash: A light and nutritious veggie that might cause mild stomach upset in sensitive eaters.
Zucchini: A tender, mild veggie that’s usually gentle but might irritate sensitive stomachs in rare cases.

Who Should Consider This Test?

People with chronic digestive issues: Those experiencing ongoing bloating, gas, or irregular bowel movements without a clear cause. Identifying food sensitivities may help reduce these symptoms and restore gut balance.
People with persistent skin problems: Those dealing with conditions like eczema, hives, or unexplained rashes that may be linked to food sensitivities. Pinpointing problem foods can provide relief and improve overall skin health.
People with unexplained fatigue: Those feeling constantly tired despite sufficient sleep and a balanced diet. Addressing food triggers could help boost energy levels and improve daily functioning.
People with frequent headaches or migraines: Those experiencing recurring headaches that could be related to certain foods. Testing for sensitivities may help identify triggers and reduce headache frequency.
People with suspected food sensitivities: Those who notice patterns of discomfort after eating specific foods but lack clear confirmation. This test can provide concrete insights to guide dietary changes.
People with autoimmune conditions: Those managing autoimmune diseases like rheumatoid arthritis or lupus, where food sensitivities may worsen inflammation. Identifying triggers can support symptom management and reduce inflammation.
People with joint or muscle pain: Those experiencing unexplained aches or stiffness that could be linked to dietary triggers. Eliminating reactive foods may help alleviate discomfort and improve mobility.
People with suspected mold or yeast sensitivities: Those exposed to environments with mold or dealing with symptoms that might indicate Candida overgrowth. Understanding immune responses to molds and yeasts can help guide treatment and dietary adjustments.
People seeking personalized dietary guidance: Those looking to optimize their diet based on their body’s unique immune responses to common foods. This test offers actionable insights for creating a diet tailored to individual health needs.
People with recurring respiratory issues: Those experiencing nasal congestion, sinus problems, or mild asthma-like symptoms that could be linked to immune reactions triggered by certain foods or molds. Testing for sensitivities may uncover dietary or environmental factors contributing to these issues.
Parents of children with behavioral concerns: Those with children experiencing attention difficulties, hyperactivity, or mood swings, as food sensitivities may play a role in these symptoms. Understanding immune reactions to foods can help create a supportive diet for improved behavior and focus.
People with weight management challenges: Those struggling to lose or maintain weight despite healthy eating and exercise, as undetected food sensitivities might contribute to inflammation or water retention. Identifying problem foods can support metabolic health and weight balance.
People with frequent infections: Those with a history of recurring infections, such as sinusitis or urinary tract infections, as food sensitivities may weaken the immune system. Identifying and removing reactive foods may help strengthen overall immunity.
Athletes experiencing unexplained performance drops: Those noticing fatigue, joint pain, or poor recovery that could be related to hidden food sensitivities. Personalized dietary adjustments based on test results can support improved energy and performance.
People recovering from chronic illness: Those with long-term health conditions, such as fibromyalgia or chronic fatigue syndrome, who suspect that food sensitivities may be contributing to their symptoms. Understanding food reactions can help fine-tune a recovery-focused diet.
People with frequent mood swings or mental fog: Those experiencing inconsistent moods, anxiety, or difficulty concentrating, as food sensitivities can sometimes impact brain function. Identifying and addressing sensitivities may improve mental clarity and emotional balance.
People undergoing dietary elimination trials: Those considering or already on an elimination diet but seeking more precise guidance to pinpoint reactive foods. This test provides actionable insights to streamline the process.
People with family histories of food sensitivities: Those with close relatives who have known food intolerances or sensitivities, as these reactions may have a genetic component. Early testing can provide preventive insights for better health.
People with hormone imbalances: Those experiencing irregular menstrual cycles, unexplained weight changes, or other signs of hormonal disruption, as food sensitivities may contribute to systemic inflammation that affects hormone regulation. Identifying triggers can support hormonal balance.
Pregnant or postpartum women with new symptoms: Those noticing digestive issues, skin changes, or fatigue during pregnancy or after childbirth, as immune system shifts may reveal or exacerbate food sensitivities. Testing can help identify foods to include or avoid for better well-being.
People with infertility or reproductive concerns: Those struggling with fertility or reproductive health, as food sensitivities may play a role in systemic inflammation that could affect reproductive function. Addressing immune responses can support overall health and reproductive goals.
People transitioning to a plant-based or new diet: Those adopting significant dietary changes who want to understand how their body responds to common foods in their new diet. Testing can ensure the diet is balanced and avoids potential problem foods.
People experiencing chronic inflammation: Those with conditions such as arthritis, chronic pain, or inflammatory bowel disease, where food sensitivities may exacerbate inflammation. Identifying and removing triggers may help reduce symptoms and improve quality of life.
People seeking anti-aging support: Those interested in optimizing their diet to reduce systemic inflammation and promote longevity, as food sensitivities can contribute to oxidative stress and aging. Tailoring the diet based on immune responses can support healthy aging.
People with cultural or lifestyle-specific diets: Those who follow specific diets, such as gluten-free, ketogenic, or low-carb, and want to ensure their food choices align with their body’s unique responses. Testing can help fine-tune these diets for better results.

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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.