FirstStep Test


The FirstStep test is the first stage of testing, providing a simple positive/negative result for food intolerance* This test includes:

  • Expert laboratory testing and analysis
  • Convenient home to laboratory testing service
  • Free delivery and return post to our laboratory
  • See our customer reviews
  • What happens next? See details below
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SKU: 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.

A positive result means you have food intolerances* – you should find out what ingredients you are reacting to with one of our full testing programmes. A negative result means there is no further testing required. *YorkTest define food intolerance as a food-specific IgG reaction.

What happens next?

Negative Result

Positive Result

You have food intolerances* – you should find out what ingredients you are reacting to

Select a full testing programme based on your symptoms:

*YorkTest define Food Intolerance as a food-specific IgG reaction. Our information is intended to provide nutritional advice for dietary optimisation. YorkTest do not claim to treat or cure symptoms and recommend that you discuss any medical concerns you have with a GP before undertaking a YorkTest programme.

intolerance flow chart

Reviews from customers who completed our full testing programmes

“Took the Food and Drink Scan after Christmas. Results were strong reaction to yeast, cows milk, and obscurely brazil nuts. Borderline reaction to gluten and egg whites. Since avoiding these foods I have more energy and motivation, better skin and generally feel more healthy. I have tried other food sensitivity tests and the York Test is the best hands down.” – Paul Essex

“This test results will be with me for the rest of my life and considering I’m only 21 that’s going to be a long time, but knowing what is going to make my feel bloated and in pain is better than just second guessing everything before I eat it!” – Lauren Teasdale

“I started to feel so much better after just two weeks. I lost 2 stone in weight and all my bloating, stomach pains, constipation, diarrhoea, heartburn and feeling tired have now gone!” – Valerie Dabbs

The best money I have ever spent, within days of eliminating the food on the list I am finally free of bloating, cramps and pain.” – Marianne Rogers

The YorkTest Customer Journey Video

How to take the Test

Taking a YorkTest Food Intolerance* Test is easy, find out how with this easy to follow video guide.
*YorkTest define Food Intolerance as a food-specific IgG reaction.