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.

Navigating Gluten Intolerance: A Guide to Managing Snack Foods

January 23, 2024

Living with a gluten intolerance can present unique challenges, especially when it comes to managing snack foods. However, with a little knowledge and planning, it's entirely possible to enjoy delicious and satisfying snacks without compromising your health. In this comprehensive guide, we will explore various alternatives, coping mechanisms, and tips to help you successfully navigate the world of snack foods as someone with a gluten intolerance.

Understanding Gluten Intolerance

Gluten intolerance, also known as celiac disease or non-celiac gluten sensitivity, is a condition in which the body reacts negatively to the consumption of gluten—a protein found in wheat, barley, rye, and certain other grains. People with gluten intolerance experience a range of symptoms, including digestive issues, fatigue, headaches, and skin problems.

Reading Labels and Identifying Hidden Gluten:

One of the first steps in managing a gluten intolerance is to become adept at reading labels. Look for foods labelled "gluten-free" or those that bear a certified gluten-free seal. However, it's important to note that some gluten-free products may still contain traces of gluten due to cross-contamination during manufacturing. Therefore, reading ingredient lists and identifying hidden sources of gluten is crucial. Common culprits include malt, modified food starch, and hydrolysed vegetable protein.

Gluten-Free Snack Alternatives

Fortunately, there are numerous gluten-free snack alternatives available that are both delicious and satisfying. Here are some ideas to keep your snack game strong:

Fresh Fruits and Vegetables: Nature's original snack foods are naturally gluten-free. Enjoy an assortment of fresh fruits and vegetables like apple slices, carrot sticks, or grapes.
Nuts and Seeds: Pack a punch of nutrition with gluten-free options like almonds, walnuts, cashews, or sunflower seeds. They are rich in healthy fats and provide a satisfying crunch.
Rice Cakes and Corn Tortilla Chips: These versatile snacks can be enjoyed on their own or with various gluten-free dips, such as hummus, salsa, or guacamole.
Yogurt and Cheese: Opt for plain yogurt and add your favourite fruits or gluten-free granola for a wholesome and creamy snack. Cheese cubes or string cheese are also great choices.
Gluten-Free Granola Bars: Look for gluten-free options that are specifically labelled, or consider making your own using gluten-free oats, nuts, and dried fruits.
Popcorn: Air-popped popcorn is an excellent gluten-free snack. Customise it with various seasonings like sea salt, nutritional yeast, or herbs for a tasty twist.
Gluten-Free Crackers: Explore the wide array of gluten-free cracker options available, such as rice crackers, corn crackers, or seed-based crackers.
Gluten-Free Baked Goods: Indulge your sweet tooth with gluten-free baked goods made from alternative flours like almond, coconut, or tapioca. Banana bread, cookies, and muffins can be made gluten-free without sacrificing taste.

Coping Mechanisms and Tips: Managing a gluten intolerance requires some planning and mindfulness. Here are some coping mechanisms and tips to make your snack management easier:

Plan Ahead: Prepare your snacks in advance to avoid being caught in a situation where only gluten-containing options are available. Portion out snacks into small containers or snack bags for easy grab-and-go convenience.
Educate Yourself: Stay informed about gluten-free options at restaurants and food establishments in your area. Apps and websites can provide valuable information on gluten-free-friendly establishments.
Communication: Inform your friends, family, and colleagues about your gluten intolerance to ensure they understand your dietary needs when it comes to shared snacks or social gatherings.
Pack Your Own Snacks: When travelling or attending events, bring a small supply of your favourite gluten-free snacks to keep you fuelled and satisfied.
Explore Gluten-Free Recipes: Embrace the joy of cooking and explore gluten-free recipes that allow you to create delicious snacks at home. Experiment with alternative flours and discover new flavours.
Seek Support: Joining support groups or online communities can provide valuable advice, tips, and emotional support from others living with gluten intolerance.

Want to Learn More About Your Gut Health?

If you think you are intolerant to gluten or any other foods, take matters into your own hands and order a home food intolerance test today!

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