Classic Problem Foods

As individuals, our reactions to foods and drinks vary a great deal. An ingredient which may cause problems for one person could be completely acceptable for another. At YorkTest, we like to refer to this as our ‘food fingerprint’.

Interestingly, our recent customer survey date shows that 64% of YorkTest customers have between 2 and 8 food reactions.

Understanding your own personal food and drink intolerances, and the effects they could have on your health and wellbeing, is important to ensure you make the best possible choices for your diet.



Gluten is a common trigger food for many, but are you aware of all the foods that contain it?

Corn grits for cereal and cobs of raw corn on a white table. Place for text.


If corn is a trigger food for you, there are a few surprising ingredients you should avoid.

wheat ears on flour surface, full frame


Wheat is often given different names on packaging - do you know what to avoid?

yeast intolerance


Yeast is a common trigger food and is one of the more difficult ingredients to avoid. Do you know what to look out for?

dairy intolerance


A reaction to dairy means you may need to make changes to your diet. Discover some delicious alternatives here...

egg intolerance


If eggs are causing you problems it is important avoid them but do you know the alternative names found on packaging

oat intolerance


If oats are a problem for you it's important to substitute them with healthy alternatives...

seafood intolerance


If seafood is a problem for you, it is essential to balance your diet with nutritious alternatives.

Wine glasses on white wooden table. Top view with space for your text


Alcohol can cause us to feel unwell from time to time but for some, it's the ingredients which causes the problem.

nut intolerance


Nuts provide you with healthy fats but if they are a trigger food for you, it is important to include healthy substitutes

intolerance to different kinds of sugar


Sugar is found in many of the foods you eat. Here are some common signs you might experience when intolerant to sugar

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What our customers say

Many of our customers are thrilled by the service that we deliver and are happy to tell us. Read about what some have said about us here.

“I'm not waking up as much during the night, not as bunged up in my nose and I've got so much more energy”
“I feel like I’m in a new body! I’m so much healthier. I can’t tell you how amazingly different I have felt since!”
“I am sharper, more motivated, focused & can think so clearly. No longer get flustered or confused when things are getting stressful”
“I felt like I could actually breathe again properly. Surprised, to be fair, how much of a difference that made”