Food Intolerance Testing Company of the Year 2018

Chosen By 50% of the UK Market

FirstStep - Free Delivery

Take the First Step Today

Our FirstStep test is a simple home to laboratory test that gives you a positive or negative result on your food intolerance (defined as a raised level of food specific IgG antibodies):

  • A positive/negative result for food intolerance† 
  • Convenient home-to-laboratory test sent straight to your door, no travel needed
  • Free delivery and return post to our laboratory (applicable in certain countries only*)
  • Expert analysis from our fully-accredited laboratory technicians
  • A call from our Customer Care team to discuss your result
  • If your result is positive, you can progress onto one of our full programmes to pinpoint your individual trigger foods



†YorkTest define Food Intolerance as a food-specific IgG reaction
*BANT stands for the British Association for Nutrition and Lifestyle Medicine – a professional body for registered nutrition practitioners

Our food intolerance testing programmes

Food&DrinkScan Programme

Analyses your IgG reactions to a wide range of food and drink ingredients. 

IBS Diet Programme

Suffering from digestive distress? Replace your trigger foods and optimise your diet.

Ideal Weight Programme

Are you eating well and exercising but not experiencing the desired results?

What our customers say

Food Intolerance advice guides

Featured in the Press

Are you suffering from any of these symptoms?

Digestive Problems?

Headache Problems?

Popular Blog Articles

What are the symptoms of Beef Intolerance?
Could You Have a Banana Allergy or Intolerance?
Do You Have A Tomato Allergy or Intolerance?
Caffeine Intolerance Signs & Symptoms

As seen on TV!

  • Free delivery
  • Food Intolerance Testing Company of the Year 2018
  • Money back guarantee with food intolerance testing†
  • After care customer service
  • Producers of industry leading research and studies on food intolerance
  • Personal one-to-one post-test support from BANT* registered nutritional therapists

† Money Back Promise UK & Ireland only – if no reactions are identified (available when you purchase one of our complete food intolerance programmes)

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