Friendly experts
who care about your
food intolerance

Our Team

YorkTest Laboratories have over 35 years of excellence in laboratory diagnostic testing, and are Europe’s leading provider of food and drink specific IgG antibody testing programmes. We are passionate about providing you with personalised information and support that can be used to help optimise your health and wellbeing.

Our Lorisian brand also works with practitioners in a wide range of fields, as well as serving sports teams and corporate health professionals. In each case we can provide a solution for identifying their client’s individual food triggers and helping them to optimise their diets.

Dr Gill Hart

Scientific Director

Gill joined YorkTest in 2005 and is one of our longest serving employees. She is a leading UK Biochemist, an expert on food intolerance and a credible and respected authority on a range of related issues, including diagnostic testing. Gill is passionate about anything scientific and health related and loves walking (especially by the sea). Gill has a creative side too, making curtains, cushions and blinds in her spare time.

Favourite food:


A fun fact about Gill:

Gill has recently taken up salsa dancing!

Alex Ashley-Roberts

Alex Ashley-Roberts

Marketing Director

Joining the business in February 2018, Alex has 10 years of marketing expertise behind him. He believes marketing is an ever-changing discipline and is immersed by the psychology of capturing the audience’s attention. He is also passionate about health and wellbeing and is looking forward to making a difference to people’s lives with YorkTest. A proud father to two children, Alex is a keen distance runner and maintains a vegan diet to optimise his performance. He is planning to run the London Marathon and annually partakes in the Snowdonia Marathon, where he grew up.

Favourite food:

Dried mango or a vegetable hotpot

A fun fact about Alex:

Alex is planning to run for 24 hours during his own charity event in aid of Action for Children

35 years of scientific expertise


Our fully audited and accredited laboratory places us at the forefront of scientific innovation.

158 foods tested

Our comprehensive testing service provides customers with actionable information to help optimise their diet and wellbeing.


With over 35 years of experience in scientific innovation, we have a strong heritage of invaluable knowledge, research and expertise.

Quality Charter

  • We will check your test at key stages throughout the laboratory process before sending you the final result.
  • We will comprehensively maintain and calibrate the equipment used to test your sample to ensure accuracy.
  • We will scrutinise the results of your test and only release the results when we are completely satisfied.
  • We will use the latest information technology within the laboratory processes to ensure the very highest levels of accuracy.
  • We will ensure your test is carried out by trained, qualified scientists at the YorkTest laboratory.
  • We will ensure your sample is rigorously tested by our own in house laboratory scientists.
  • You have assurance that the blood collection kits and methods used are CE marked.
  • We will safeguard the confidentiality of your test throughout the process by using a unique number, enabling it to be tracked at every stage while ensuring that confidentiality is maintained.
  • We will never give details of your test to any person, institution, organisation or body without your consent or unless ordered to do so by a court order.
  • Your information will be kept safe at all times in compliance with the Data Protection Act 1994.
  • Our quality assurance procedures are audited by independent authorities to ensure compliance with international regulations (ISO 9001:2008, ISO 13485:2003).
  • YorkTest Laboratories produce unique sterile blood collection kits that comply with the European Medical Device Directive 93/42/EEC and the European In Vitro Diagnostic Directive 98/79/EC.
  • Along with your results, we will issue you with comprehensive support information to ensure you maintain optimum health.
  • Food and drink specific IgG reactions tests customers will also receive the personal one-to-one advice from BANT* registered Nutritional Therapists to support your dietary changes.
  • You will have access to a free initial consultation to help identify the correct test for you. Call our consultants on 0800 074 6185 or for Ireland 01 20 22 701.
*British Association for Applied Nutrition & Nutritional Therapy (BANT)
  • YorkTest offers a 30-day money back guarantee. You can return your test in its original and unused condition within 30 days of purchase for a full refund if you decide not to go ahead. This does not affect your statutory rights.
  • When you order your test we’ll despatch it within 2-5 business days.
  • If you are ordering from outside the UK and Ireland please allow 2-3 weeks.

Our awards include:

Fast 50 Growth Company

Certification ISO 13485:2003

European In Vitro Diagnostic Directive 98/79/EC