Description
Comprehensive Food Intolerance Blood Test
If you regularly experience symptoms like bloating, fatigue, brain fog, digestive discomfort, or skin flare-ups, food intolerance could be at the root of the problem.
Unlike food allergies, which cause immediate and often severe reactions, food intolerances trigger delayed immune responses that can appear hours—or even days—after eating.
These delayed reactions can be much harder to trace, especially when symptoms seem unrelated or come and go without warning.
Our Food Intolerance Blood Test is designed to help uncover the foods that may be silently affecting your health. It measures your body’s immune response—specifically IgG antibodies—to a wide range of commonly consumed foods. Elevated IgG levels can suggest that your body is reacting to certain ingredients, which over time may lead to inflammation, digestive issues, low energy, and other ongoing symptoms.
This comprehensive test analyses your reaction to over 80 foods and ingredients across all major food groups. It includes dairy products such as milk, cheddar cheese, and whey, as well as common proteins like beef, chicken, turkey, lamb, pork, egg white, and egg yolk. Fish and shellfish are also covered, including cod, salmon, halibut, tuna, sardine, sole, trout, mackerel, crab, lobster, and shrimp.
A wide range of nuts and seeds are included, such as almond, Brazil nut, peanut, pecan, walnut, pistachio, sesame seed, and sunflower seed. For those who may be reacting to grains and legumes, the test checks your response to wheat, gluten, barley, rye, oat, corn, buckwheat, rice, soya bean, chickpea, lentil, lima bean, red kidney bean, and green pea.
Vegetables and fungi are also tested—including common ingredients like carrot, broccoli, cauliflower, cabbage, celery, spinach, cucumber, asparagus, garlic, onion, green bean, green pepper, mushroom, pumpkin, tomato, green olive, and potato. The fruit and berry panel is extensive and includes apple, banana, orange, pear, peach, apricot, avocado, grapefruit, lemon, lime, pineapple, papaya, plum, grape, strawberry, blueberry, raspberry, cranberry, and watermelon.
To cover everyday foods and additional potential triggers, the test also includes chocolate, honey, coffee, flour, yeast, brewer’s yeast, coconut, and candida albicans.
By identifying which foods may be contributing to your symptoms, this test provides the clarity needed to make meaningful changes to your diet. With your results, you can work with a healthcare professional or nutritionist to create a personalised elimination plan. This often involves removing suspected trigger foods for a period of time, then reintroducing them one at a time to observe how your body responds. It’s a structured, evidence-based approach to managing symptoms and improving how you feel day to day.
Whether you’ve been struggling with unexplained digestive problems, low energy levels, skin issues, or just haven’t felt like yourself lately, a Food Intolerance Blood Test can offer valuable insight. It’s a simple yet powerful tool to help you take control of your health, feel more like yourself again, and start making dietary choices with confidence.
How often should I have a Food Intolerance Blood Test?
Most people only need a Food Intolerance Blood Test once—unless symptoms change.
It’s a smart way to get clarity and adjust your diet confidently.
Our Nurses visit your Home or Work to take your blood.
Pick a time and date to suit you.
Your results are available online within days of your blood being taken.
Other Questions
- Persistent Bloating – Regular abdominal discomfort or swelling after eating.
- Fatigue and Low Energy – Feeling tired despite adequate sleep and rest.
- Brain Fog – Difficulty concentrating or feeling mentally sluggish.
- Digestive Issues – Ongoing constipation, diarrhoea, or stomach cramps.
- Unexplained Headaches or Migraines – Particularly if they occur after meals.
- Skin Problems – Acne, rashes, eczema, or other flare-ups without an obvious cause.
- Mood Changes – Low mood, irritability, or feeling emotionally off without a clear trigger.
- Joint Pain or Stiffness – Especially when accompanied by other systemic symptoms.
- Difficulty Identifying Trigger Foods – When trial-and-error dieting hasn’t worked.
- Long-Term Gut Concerns – Such as suspected IBS or sensitivity to certain foods.
- Desire for Personalised Dietary Guidance – To take the guesswork out of elimination diets.
- Support for Health Goals – Such as clearer skin, better digestion, or improved energy.
- Mango
- Cheese (cheddar)
- Milk
- Coconut
- Brazil nut
- Whey
- Beef
- Chicken meat
- Egg white
- Egg yolk
- Lamb
- Pork
- Turkey meat
- Barley
- Buckwheat
- Corn
- Gluten
- Hazelnut
- Oat
- Rice
- Wheat
- Cod Fish
- Halibut
- Salmon
- Sardine
- Sole
- Trout
- Tuna
- Crab
- Lobster
- Mushroom
- Shrimp
- Almond
- Peanut
- Pecan nut
- Sesame seed
- Sunflower seed
- Walnut
- Candida albicans
- Lentil
- Lettuce
- Lima bean
- Onion
- Green pea
- Brewer’s
- Apple
- Apricot
- Avocado
- Banana
- Blueberry
- Cranberry
- Grapefruit
- Lemon
- Orange
- Papaya
- Peach
- Pear
- Pineapple
- Plum
- Raspberry
- Grape
- Strawberry
- Watermelon
- Asparagus
- Green olive
- Broccoli
- Cabbage
- Carrot
- Cauliflower
- Celery
- Cucumber
- Garlic
- Green bean
- Green pepper
- Red kidney bean
- Potato
- Pumpkin
- Soya bean
- Spinach
- Tomato
- Mackerel
- Rye
- Flour
- Yeast
- Chickpea
- Chocolate
- Coffee
- Honey
- Pistachio
Take the blood test as early as possible if you experience bloating, fatigue, brain fog, or skin flare-ups after eating.
Collection method: Venous blood
Results available: 1-2 days after the sample has reached the laboratory.
IgG as a Biomarker
IgG antibodies are a type of protein made by your immune system. They help your body recognise and remember foreign substances like bacteria, viruses, and even certain foods.
In food intolerance testing, raised levels of IgG antibodies to specific foods may suggest that your immune system is reacting to those foods in a delayed way.
This isn’t a food allergy (which involves IgE antibodies and immediate reactions), but a slower, ongoing immune response.
How it Works
1. Order a Test
Order your test, and then Answer the Questions about why you’re taking that test.
Our nurse will contact you for dates, so they can take your blood sample at your home.
Our nurse will then send your sample to our laboratory.
2. Our laboratory team run the tests
Our skilled laboratory staff conduct your blood tests in a clean and secure environment, ensuring accuracy and reliability.
Each test follows strict protocols to maintain the highest quality standards.
3. Receive Your Results within 7 days
We will email you to inform you that your blood test results are ready.
The email will have a PDF report attached, sent directly to your inbox.
4. Monitor your levels over time
With regular ongoing tests and reports, you can track your results. The reports can be shared with your GP.
Check if you’re improving healthily or where changes could be made.
