
Dr. Joseph Nightingale, MBBS, MSc
Health and Science Copywriter and Qualified Doctor

Dr. Kristen Poe, PhD
Functional Medicine practitioner and Naprapathic doctor

Maria Griffiths
Registered Nutrition Practitioner

Test Your Intolerance is part of the Worldwide Health & Wellness company, Healthy Stuff Online Ltd.
Since 2008, we have been offering wellness services to customers and partners worldwide. Initially focusing on complementary and alternative medicines (CAMs), we supported individuals who had exhausted conventional health options. Over time, we expanded our offerings to include scientifically proven tests and products from trusted brands, ensuring a comprehensive approach to health and wellness.
Our global network now spans 40 countries, delivering allergy, intolerance, sensitivity, and other health-related tests worldwide. At Test Your Intolerance, we’re committed to empowering individuals to make positive health changes with clear, informed facts from our tests.
We continue to offer both conventional and complementary products, meaning we offer the most comprehensive options for all our customers. In 2019, we became the first company to introduce ‘Test Facts’, a unique tool that gives customers essential, easy-to-understand information about each test.
Our head office is based in Derby, United Kingdom, where we adhere to the highest quality standards. Unlike many other companies offering these tests, our laboratory is on-site, allowing us to ensure the lab and team operate under Good Laboratory Practice (GLP). Our cutting-edge allergy and intolerance testing facility is certified to ISO 9001 standards. We’re constantly looking for ways to improve our operation, and we are committed to investing in the latest technology and ongoing training to provide the best possible service to our customers.
We have a full compliance procedure that is adhered to for all testing. If you need to contact us about this, please use
We believe that one size does not fit all. Conventional products are the best choice for some, while others may seek alternatives.
Our secure server and custom CRM, ‘HealthSuite,’ protects your data. Our team is regularly trained in data protection, ensuring all confidential documents are processed securely.
Led by experienced professionals, our team continues to grow. Each department is staffed by experts who receive continuous training. Meet our dedicated management team below.
Our packaging is recyclable and printed with plant-based ink. We recycle non-confidential waste and use energy-saving devices across our offices and labs.
Our greatest asset is our people, our team and the customers we help. That’s why we offer a satisfaction guarantee and promise to treat every customer fairly.
We value feedback from our customers. These reviews reflect the genuine experience of our customers and help us continually improve our services.
Our exclusive hair tests reveal sensitivities to a wide range of food and environmental triggers, testing up to 1400 possible imbalances. With results delivered securely to your email, you’ll gain valuable insights into your sensitivities for a healthier lifestyle. View our selection of hair tests here.
Our health tests offer insights into key health indicators and allow you to monitor your body’s performance regularly. We offer a wide range of tests, including:
Monitor your health and wellness from the comfort of your own home with our range of at-home health tests available here.
Support your health with our specially formulated supplements and natural remedies. From gut health to liver & kidney support, our range targets specific areas of your body for a natural, balanced boost to your overall well-being. Our range of supplements is waiting for you here.
Dr. Joseph Nightingale, MBBS, MSc
Health and Science Copywriter and Qualified Doctor
Dr. Kristen Poe, PhD
Functional Medicine practitioner and Naprapathic doctor
Maria Griffiths
Registered Nutrition Practitioner
We constantly strive for excellence in our industry and our local area. We are very proud to be members of the East Midlands Chamber of Commerce, the second largest in the country. As members of the community, we actively engage in initiatives like fundraising, local tree planting, and participation in national awards.
View our awards and nominations here.
Watch the segment from BBC East Midlands
We were proud to be featured on BBC East Midlands, where our Chairman, Jason Wootton, spoke with the BBC Health correspondent about Test Your Intolerance and our range of tests. You can watch a subtitled version of the segment here.
Company Name: Healthy Stuff Online Limited
Trading Names: Test Your Intolerance
Company number: 08674646
VAT Registration: GB183061030
Year of incorporation: 2013
Number of employees: 28
Healthy Stuff Online Ltd.
Unit 1A Bonington Complex,
Trent Lane,
Trent Lane Industrial Estate,
Derby,
DE74 2PY,
United Kingdom.