Key Benefits

  • Simple ‘positive or negative’ indicator of food intolerance*
  • Convenient home to laboratory testing service with FREE delivery and return
  • If positive, the price is deducted from the cost of your Complete YorkTest Programme
Introductory Test

FirstStep Test

The FirstStep Test is a simple and convenient home to laboratory test. The test will give you a clear 'positive or negative' indicator of food intolerance*. If you have a positive result you may then choose to purchase one of our full programmes to investigate your individual problem foods under our expert guidance. 

  • Free return post to our laboratory
  • Convenient home to laboratory testing service
  • Expert laboratory testing and analysis



Add to basket Questions?
Request a callback

About the FirstStep Test

As individuals, our reactions to foods and drinks vary a great deal. An ingredient which may cause problems for one person could be completely acceptable for another. At YorkTest, we like to refer to this as our ‘food fingerprint’.

Understanding your own personal food and drink intolerances, and the effects they could have on your health and wellbeing, is important to ensuring you make the best possible choices for your diet.

The YorkTest FirstStep is ideal for discovering whether food-specific IgG antibody reactions are present in your blood before progressing to one of our complete YorkTest programmes. Learn more

Why Choose the FirstStep Test?

  • The test is a pre-screen for IgG antibody reactions to foods
  • If positive, progress to either the comprehensive FoodScan, Food&DrinkScan, Ideal Weight Programme or IBS Diet Programme
  • Easy to use, finger prick blood test which can be taken in the comfort of your home
  • Laboratory analysed results
  • Customer care support and advice
  • Convenient mail order postal service; no need to visit our laboratory

What to Expect from the FirstStep Test

The YorkTest FirstStep kit contains all you need to take a small blood sample (2 – 3 drops) in the comfort of your own home. 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.

If you get a positive result* you will be able to progress on to one of our tailored complete programmes. Our complete programmes are supported by essential guidance and advice from our BANT** registered Nutritional Therapists to enable you to eliminate your trigger foods and optimise your diet.

If you get a negative result then you do not have food-specific IgG reactions present. Our Customer Care Team will talk you through other testing options available to you.

Back to top
  • 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 do not encourage you to eat a food or foods which you already know are a problem to you.

**British Association of Nutritional Therapists

Back to top

Customer reviews

24 reviews -0001 - 2016

  1. *
  2. *
  3. *
  4. *
  5. *

Tuesday 19th April 2016

Valerie Knott

  1. *
  2. *
  3. *
  4. *
  5. *
After being diagnosed with ibs and struggling with work from it, I took the first step test, resulting as positive for intolerances. I took the next step and found what I was intolerant too and had a brilliant consultation with a nutritional therapist. I can honestly say it is the best money I have spent. I h ave had only a couple of episodes due to my own over confidence. I highly recommend this if you need to m ove on with your life and not live around a toilet and your doctors are rubbish.

Wednesday 23rd March 2016


  1. *
  2. *
  3. *
The test arrived fast and the results were quick to arrive. Great Service. Phone Call with Dietician quite basic. I did the test due to having adult acne. I had an intolerance to dairy, egg white, egg yolk, yeast, beef and some herbs. I've cut these ingredients from my diet now for 2 months and havnt seen any improvements with my skin. I'm going to keep going and hopefully it will work soon. The service was top notch, I've left 3 stars because the results havn't shown imporvments after 2 months of elimination. I had a smaller reaction to gluten and sesame seeds so the next step is to eliminate these foods. Although I don't really eat sesame seeds and I've already eliminated a lot of gluten by not eating yeast. Time will tell.
  • Taking the test is quick and simple

  • Food Intolerance Definition

    YorkTest define Food Intolerance as a food-specific IgG reaction. Take a look at our scientific research.

    Find out more
  • Customer testimonials

    Read some of our customers' stories

    Find out more
Back to top