What is the test method?

Our food intolerance tests are done using a blood based method covering IgG 1,2,3,4, the blood sample collection process is done via a pin prick to the finger, it takes around 4-5 large droplets.

Why do food cause an IgGantibodies response?

Generally, foods are broken down during digestion into their component parts e.g. amino acids, glycerides etc. These pass harmlessly through the gut as the gut becomes inflamed (bloated) these proteins enter the bloodstream. This is where they are recognized by the immune system as being ‘foreign’. The immune system responds by making IgG antibodies to these foods.

What is the difference between hair and blood based test?

You can't test immune reactions via a hair sample, and in many cases there have been discrepancies in results when parts of the hair have been coloured/bleached. This has led to inconsistency in the sample tested twice. Our IgG 1,2,3,4 blood based testing covers the full range of antibodies responses, this is important, if a particular food elevates any antibodies against it, this means your gut and immune system recognises that food as a threat. This could affect the nutrients absorbed from this particular food and leads to multiple symptoms.

Do high IgG antibody levels cause symptoms?

When a food causes the body to produce high levels of IgG then these antibodies combine with the protein in the food to form an ‘antigen-antibody complex’. These complexes are usually eliminated by other cells in the immune system. However, if the immune system is overloaded, these insoluble molecules become deposited in tissues within the body, causing chronic inflammation and the subsequent production of symptoms.

Why test for IgG antibodies to foods?

The efficacy of a diet based on the measurement of IgG antibodies specific for food components has been demonstrated in a number of conditions, both in independent studies and clinical practice. Excellent results have been obtained in patients with migraine, IBS and obesity.

What is the lower age limit for testing?

Supply Life's existing policy for a lower age limit on testing for IgG food antibodies is that we do not recommend testing on children under the age of 2 years. We base this on the European Society for Paediatric Gastroenterology, Hepatology, and Nutrition Guidelines for the Diagnosis of Coeliac Disease 2012, which states that there is a possibility of false negative results occurring in infants younger than 2 years of age. This related to the fact that the infant gut is more permeable than that of an adult coupled with immature mucosal immunity that is still in the learning and development stage. We have used this criterion as antibody measurements in Coeliac Disease are comparable to food IgG measurements used in our food intolerance tests. However, we are aware that there are in fact no published guidelines that specifically indicate a minimum age for testing for such IgG antibodies, for example the guidelines for testing for coeliac antibodies indicate that such testing can be performed any time after the introduction of gluten into the diet. Therefore, where such requests are received from a statutory regulated professional the decision of when and what tests to perform will remain the responsibility of the requesting clinician.

What should be considered before testing - Is there any medication that I should avoid when taking a food intolerance test, due to its potential effects upon the results?

Customers should avoid the use of immunosuppressant medication if possible if performing these tests, as they may have an impact upon the results. Please refer to the medication datasheet in the “Support” section for further details.

How does the test work?

Food extracts are 'printed' onto nitrocellulose 'pads'™ on a glass microscope slide, together with calibration standards and controls. A blood sample provided by the patient is diluted and dispensed onto each printed microarray. Food IgG antibodies, if present, bind to the food extracts and the results are measured by a high-resolution scanner, before being calibrated against the standards using the reporting software to give quantitative results. This software then produces a tailor-made printout of the final food IgG antibody result for each food on the requested food panel.

Do you need to full the microvette all the way to the white line?

Although it is advisable to completely fill the tube, a half filled microvette tube should be enough to run the test. If there are any problems with a sample and the lab will let the customer know. However, if you are ordering two tests we can test from one sample if you provide a full microvette.

Do you need to store the blood in the fridge, if not sending the same day?

Yes, it does need to be stored in the fridge with the lid secured if not sending on the same day.

Can I upgrade my test to a larger food panel?

You can upgrade for up to a maximum of 4 weeks from the date that your first sample is received.

What are the sample requirements and test turnaround?

A pin-prick blood sample is required. Results are available within 10 working days.

Does the Supply Life test for all subclasses of IgG antibody or only IgG4?

Our process screens for all IgG subclasses 1-4, with the numbers on the test report representing the total IgG concentration for each food extract in the selected panel.

Communicating a Food Intolerance to Your Child: A Guide to Nurturing Healthy Habits

June 14, 2023

Discovering that your child has a food intolerance can be challenging for both the child and the parents. However, with effective communication and a positive approach, you can help your child understand their dietary needs without causing unnecessary worry or stress. In this blog post, we will provide you with valuable advice and tactics on how to communicate a food intolerance to your child, make mealtime fun, and emphasise the importance of a healthy diet. We'll also introduce Supply Life, the leading provider of home food intolerance tests in the UK, as a valuable resource to support your family's understanding of their bodies and promote gut health.

Choose the Right Time and Approach

When discussing a food intolerance with your child, it's crucial to choose an appropriate time and approach. Consider the following tactics:

a) Age-appropriate language: Tailor your explanation to your child's age and understanding. Use simple and clear language to help them grasp the concept without overwhelming them.

b) Positive messaging: Focus on the benefits of identifying and managing food intolerances rather than dwelling on restrictions. Explain how it will help them feel better and have more energy.

c) One-on-one conversation: Find a quiet moment to talk privately with your child. This allows them to feel heard and understood, making it easier for them to ask questions or express their concerns.

Educate and Empower

Knowledge is key when it comes to managing a food intolerance. Help your child understand their body and the importance of a healthy diet. Here are some strategies:

a) Visual aids: Use visual aids such as diagrams or pictures to explain how certain foods affect their body and why it's necessary to avoid them. This can make complex concepts easier to comprehend.

b) Age-appropriate resources: Look for books, videos, or online resources specifically designed to explain food intolerances to children. These resources can simplify the information and make it more engaging for your child.

c) Involvement in meal planning: Allow your child to participate in meal planning and grocery shopping. This involvement helps them feel empowered and encourages them to make healthier food choices.

Make Mealtime Fun

Restricting certain foods can be challenging for a child, but it doesn't mean mealtime has to be boring. Keep the joy in eating with these tips:

a) Creative alternatives: Find delicious and safe alternatives to their favourite foods. Experiment with different recipes, substitutions, and ingredients to create tasty meals that cater to their dietary needs.

b) Engaging activities: Turn mealtime into a fun experience by incorporating activities such as cooking together, setting themed dinner nights, or arranging food art. Making meals visually appealing can spark your child's interest and make them more enthusiastic about their food.

c) Positive reinforcement: Praise your child for making healthy choices and trying new foods. This positive reinforcement helps build their confidence and encourages them to continue making good food choices.

Supply Life: Promoting Understanding and Gut Health

To better understand your child's food intolerances and improve overall gut health, consider using home food intolerance tests from Supply Life, the leading provider in the UK. These tests provide valuable insights into your family's dietary needs and enable you to make informed decisions about food choices. Supply Life offers comprehensive testing kits and expert guidance to support your family's well-being.

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