Intolerances to Caffeine and other drinks.

IgG sensitivities to coffee, tea and other drinks.

Caffeine is thought to be the main component of Coffee and Tea that may be responsible for a sensitivity to those drinks.

Manifesting as bloating, Irritable Bowel Syndrome (IBS), weight gain, fatigue, skin problems, migraines or joint pain, even a mild food intolerance to some drinks may have a major impact upon a person’s day to day activities, and the inclusion of these foods in a western diet is so common that the actual intolerances can be difficult to find, and also to avoid successfully.

Smartblood Story, Lee's Coffee Intolerance

Lee is a youth support worker and illustrator. He experiencves days where he has fatigue and joint pain.

View Lee’s video story to see how a Smartblood food intolerance test helped him to identify his trigger foods, one of which was coffee, and how a consultation with a Smartblood Nutritional Therapist helped him identify foods that contained his trigger foods, and showed him how to avoid them, as well as identify suitable replacements.

Smartblood Testing is definitely something that I would recommend. - Lee

Smartblood tests food intolerance to 13 drinks.

Our scientists have created a food intolerance testing kit that will show your reaction levels to Coffee, Tea, and 11 other drinks. In total the test looks at reactions in your blood to 134 food and drink ingredients and can be completed easily at home using a simple finger prick blood collection wand.

The full Smartblood Programme offers:

Instant Results Access

At Smartblood, we know how frustrating it can be waiting for a postal copy of your food intolerance test to arrive, especially if you are keen to know what trigger foods could be responsible for how you are feeling.

As soon as full Smartblood programme results have been approved for release by our Laboratory Director your full results report will be sent to you via email. View a summary of all reactive food groups and delve further in with interactive charts for each food or drink section, including one specifically for wheat, gluten, and other grains.

Example Results

A Consultation with a BANT registered Nutritional Therapist

Knowing which foods you are intolerant to is only half of the battle when it comes to improving how you feel. That is why, with every full Smartblood Programme, we include a 30 minute consultation with one of our Smartblood Nutritional Therapists, all of whom are registered with the British Association of Nutritional Therapists (BANT); between them they have helped tens of thousands of people adjust and improve their diet following a positive food intolerance test.

What our Clients have to say

Story of Lisa, Story of Matt, Story of Maggie

Matt's Food Intolerance to Gluten

Maggie's Story - Food Intolerance and Fatigue

The Science behind the story

In a Randomised Controlled Trial Conducted by Atkinson, Sheldon, Shaath et al, a clinically significant improvement in symptomatology was observed in patients eliminating foods to which they were found to exhibit sensitivity, as identified by an ELISA test for the presence of IgG antibodies to these foods - see more details and studies on our scientific studies page.

Could you have a Coffee or Tea intolerance, or to any other foods or drinks?

If you think that a intolerance to Caffeine or any other foods or drinks may be responsible for your symptoms then we believe that our easy to complete tests could help you. Find all of your food intolerances out at once with the full Smartblood test.

The full Smartblood test is a complete program and is a great way to discover all of your food sensitivities and take control over your own personal trigger foods.

Around 10% of our customers exhibit no IgG reactions to the 134 foods whatsoever – for tests conducted from October 2023 we are providing non-reactive customers with a FULL REFUND so they can continue their investigations through other testing.

Full Smartblood Test

£99.00

Free P&P

100% Refund Guarantee
if no reaction

No setup fees
100% hassle-free

No monthly subscription
Pay once and for all