UK
UK Food Intolerance
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Food for thought
I found this to be a very reliable company and service that is extensive and thorough in their testing. It will be a company I return to at a later point to recheck my intolerances etc. I now believe this is a test that anyone should carry out annually. I highly recommend the company and having the test if you have any suspicions about your health or substances you might be lacking or sensitive to.