Understanding food intolerances: What a blood test really reveals

Why we often feel tired, bloated or unwell – and how an intolerance test can help

You seem to eat healthily, take care of yourself – and yet you often feel tired, bloated, or have vague symptoms like headaches, skin problems, or difficulty concentrating? Such symptoms can have many causes. One that is often overlooked is so-called food intolerance . Unlike allergies, these are not acute, severe immune reactions, but rather chronic processes that can burden your body over a longer period.

With a modern intolerance test based on a blood analysis, you can get to the bottom of your body's issues – conveniently from home. This article explains how a blood test for intolerances works, the scientific basis behind it, and why a personalized nutrition plan can significantly improve your quality of life.

What exactly is a food intolerance?

Unlike a classic food allergy, in which the immune system reacts strongly to an allergen by producing IgE antibodies, food intolerances often develop gradually. They are frequently based on the formation of IgG antibodies against specific food components.

These IgG reactions are not without controversy in the scientific community. Some experts see them as a normal part of the immune system, while others view them as an indication of overstimulation or irritation from a food. The fact is, however, that a growing number of studies and anecdotal reports show that many sufferers experience a significant improvement in their symptoms after undergoing a blood test for food intolerances and making targeted dietary changes.

How does an IgG-based intolerance test work?

The mybody® intolerance test is based on a simple blood sample that you can easily collect at home. The sample is analyzed in a specialized laboratory. The analysis measures whether and in what quantity IgG antibodies against specific foods are present in the blood.

What's special about it: The test covers over 280 commonly consumed foods – from grains, dairy products, fruits, vegetables, and nuts to spices. This creates a comprehensive picture of your personal tolerance.

👉 Learn more: mybody® Food Intolerances IgG Blood Test

What symptoms can result from an intolerance?

The range of symptoms is broad and not always clear. These include, among others:

• Bloating, diarrhea or a feeling of fullness

• Headaches or migraines

• Skin problems such as eczema or acne

• Tiredness and exhaustion

• Joint pain

• Concentration problems

Precisely because the symptoms are so nonspecific, it is difficult to attribute them to a particular food. A structured intolerance test can provide clarity here.

Scientific controversy: What do studies say about IgG tests?

Opinions are divided regarding the significance of IgG antibodies. Some professional societies, such as the German Society for Allergology and Clinical Immunology (DGAKI), are cautious in their assessment. Other studies, however, show that an elimination diet based on an IgG intolerance test has led to a significant improvement in quality of life for many patients – particularly those with chronic bowel problems or migraines.

It is important to note: This test does not replace a medical diagnosis, but serves as a guide. In combination with professional advice, it should not be used for a definitive diagnosis. However, he can provide valuable input on nutritional advice.

Tailor your diet to your individual needs – instead of simply giving up food altogether.

The goal is not complete abstinence, but rather the conscious reduction of foods that are not good for your body. Ideally, by specifically adjusting your diet, you can relieve the burden on your gut, calm your immune system, and gain more energy and well-being in the long term.

mybody® accompanies you with a well-founded test, a digital results report and specific nutritional recommendations – if desired, also with a follow-up by nutrition experts.

👉 Learn more now: Blood intolerance test – conveniently performed at home

Conclusion: Your health begins with your diet

An unbalanced approach to food can significantly impact your well-being – often without you realizing the connection. A thorough intolerance test via blood sample can help you better understand your body and take targeted countermeasures.

Do you want to find your individual path to more energy and well-being? Then the at-home intolerance test is your first step.

Scientific references

1. Stapel, SO et al. (2008): Testing for IgG4 against foods is not recommended as a diagnostic tool: EAACI Task Force Report. Allergy , 63(7), 793–796.
   👉 DOI: 10.1111/j.1398-9995.2008.01705.x

2. Dölle-Bierke, S. et al. (2021): Position paper of the DGAKI and GPA on the use of IgG tests in food intolerances. DGAKI Position Paper
   👉 www.dgaki.de

3. European Academy of Allergy and Clinical Immunology (EAACI) (2017): IgG antibodies in food intolerance – Position paper.
   👉 www.eaaci.org

4. Niggemann, B. & Beyer, K. (2009): Diagnostic approach to suspected food allergy in children and adults. Journal of Allergy and Clinical Immunology , 124(6), S114–S118.
   👉 DOI: 10.1016/j.jaci.2009.10.008

5. Matsuo, H. et al. (2015): Food-specific IgG antibodies in healthy and symptomatic individuals. Biochemical and Biophysical Research Communications , 458(3), 582–586.
   👉 DOI: 10.1016/j.bbrc.2015.01.158

6. Turner, P.J. et al. (2021): Food allergy diagnosis and management. BMJ , 372:n251.
   👉 DOI: 10.1136/bmj.n251

7. National Institute for Health and Care Excellence (NICE) (2011): Food allergy in children and young people.
   👉 www.nice.org.uk