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Welcome!

Welcome to Duke Intolerance Testing and Nutrition, where I, Darren Duke, am dedicated to unravelling the mysteries behind your health concerns. Serving the Chelmsford area and beyond, my goal is to provide comprehensive intolerance testing and ...

In the realm of health and nutrition, Duke Intolerance Testing and Nutrition distinguishes itself through a commitment to personalised and non-invasive testing procedures. Unlike conventional methods that may involve blood samples or skin pricking, my ...

Are You Experiencing Any of These Symptoms?

Anxiety, Fatigue, Bloating, Irritable bowel syndrome (IBS), migraine, aching joints, feeling unwell, Constipation, diarrhoea, Reflux, Heartburn, Eczema, Rashes, Itching, Hives, Asthma, Coughing, and Hyperactivity, Behaviour problems, mood swings, and sleep problems.


If you are, you might have some food intolerance. Take a test and find out. 

Google Reviews

Jemma Wallace
I had a really positive experience with this intolerance test with Darren. For a long time, I struggled with unexplained skin rashes and couldn’t...  Read more
Jan 4, 2026
Gemma Harrington
I had an intolerance test with Darren at Duke Intolerance Testing & Nutrition and it was amazing! He really knows his stuff and gave me loads of...  Read more
Oct 13, 2025

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