FirstStep Test

The YorkTest FirstStep Test quickly determines whether IgG antibody reactions to foods and drinks are detected in your blood or not.

If you get a positive result then purchase the FoodScan Programme (£245†), Food&DrinkScan Programme (£289†) or IBS Diet Programme (£289†) or Ideal Weight Programme (£289†) to discover what foods you have reacted to.

If you get a negative result then you do not have food-specific IgG reactions present and therefore no further testing is required.

Key benefits
  • Laboratory analysed yes/no test for IgG antibody reactions to foods.
  • Simple finger-prick home blood test that you post back to our laboratory.
  • If positive, you can choose to pay to progress onto one of our comprehensive programmes.
Price £9.99

More about The FirstStep Test

  1. Product description
  2. Why Choose the FirstStep Test?
  3. Important Information
  4. Taking the test
  5. Example results
  6. Testimonials & Reviews

Full product description

The YorkTest FirstStep is ideal if you're interested in one of our complete YorkTest Programmes but would like to know whether an IgG antibody food reaction is present in your blood first before deciding whether or not to progress to the next step.

If positive the second stage involves expert analysis of IgG antibody reactions to either 113 or 158 food and drink ingredients, depending upon whether you choose the FoodScan, Food&DrinkScan or IBS Diet Programmes. It also includes two telephone consultations with a BANT* registered Nutritional Therapist. The additional charge to progress to the FoodScan Programme is £245 or £289 for the full Food&DrinkScan Programme or IBS Diet Programme.

The YorkTest FirstStep Test kit contains all you need to take a 2-3 drop blood sample. Simply return your sample in the pre-paid envelope provided (UK only) to our York laboratories for expert analysis. Your confidential results are then posted to you within ten days.

†Applicable to FirstStep customers only
*British Associatiation for Applied Nutrition and Nutritional Therapy

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Celebrity Testimonial

Olympian and world marathon record holder Paula Radcliffe told us that she started to suffer from symptoms that were so unbearable it was affecting her training.

She was recommended to use the FoodScan programme from YorkTest Laboratories by friends and fellow athletes.

Her test came back informing her she had IgG antibody reactions to egg, chicken, wheat, tomatoes and dairy.
After some time on her new diet Paula returned to YorkTest for a retest of her FoodScan. Her results came back as a surprise as she learned that she was reacting to blackcurrant, yeast, soya bean, gluten and chilli pepper. Paula was advised on how to best eliminate these foods from her diet without taking away their key health benefits.
For more information on the test that Paula took please click here


I was shocked that I could be reacting to these foods as they are not the usual suspects, it made sense as I was drinking blackcurrant juice nearly every day, yeast and gluten was in virtually every meal and I included peppers in my food several times a week.

Paula Radcliffe

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Why Choose the FirstStep Test?

  • A basic pre-screen for IgG antibody reactions to foods
  • You can then choose to progress to either the comprehensive FoodScan, Food&DrinkScan or IBS Diet Programmes
  • Easy to use, finger prick blood test which can be taken in the comfort of your home
  • Mail order postal service – no need to visit our laboratory
  • Laboratory analysed results
  • Customer care support to advise you on the next step to take after receiving your First Step results

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Important Information

Do NOT take this test if you are:

  • Suffering from a blood borne disease such as Hepatitis or HIV
  • Under 2 years old
  • Pregnant or breastfeeding
N.B. Raised levels of food-specific IgG antibodies within your blood indicate that an IgG antibody reaction to a particular food or foods has occurred. If you have already taken the decision to eliminate a particular food or foods from your diet they may not show up as a reaction on your results. If you know of foods that trigger your symptoms then do not start eating them; we cannot encourage you to eat a food or foods which you already know are a problem to you.

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Taking the test

Click the image below to watch our video.

Or view our step-by-step guide here.

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Your Results

Progressing to one of our further tests provides detailed test results which are graded by a score of REACTION, BORDERLINE OR NO REACTION:

Your results explained


REACTION - indicates you have raised IgG antibody levels to these foods and you should try to eliminate them completely from your diet.  You may benefit from removing all foods and drinks socred REACTION from your diet.

BORDERLINE - indicates you have a borderline reaction to these foods and may or may not benefit by limiting their consumption. 

NO REACTION - these foods can be eaten without restriction, unless you already know that these foods do cause you a reaction and you have been avoiding them, in which case you should continue to do so. 

View the full example results document

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Customer Testimonials

Gone on to take the full food intolerance food test.
I thought about taking the first york test for quite a while. When it came back positive, I asked some questions on the live chatline and was given examples of how the yorktest for other people had assisted them with symptoms that may have been caused by food intolerance. I have gone on to take the full food intolerance food test.

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