We did this test for my daughter that tested negative to all allergies and GI issues. She has a whole list of intolerances and since eliminating the foods on her list her excruciating stomach pains of gone away. This test saved her life!
It also showed she was deficient in Selenium and iodine, which prompted me to have her Thyroid checked. She is only 13, so Dr's hadn't even considered that, but her TSH level was 6.86! (Optimal range is. 5-2) She is now on thyroid meds that have brought it back to normal.