http://journals.lww.com/clinnutrinsight/Fulltext/2013/03000/Food_Sensitivity_Testing___Evidence_Based_Practice.1.aspx (http://journals.lww.com/clinnutrinsight/Fulltext/2013/03000/Food_Sensitivity_Testing___Evidence_Based_Practice.1.aspx)
Quote
* Despite growing popularity, most tests designed to identify food sensitivities or intolerance reactions are not supported by strong evidence.
* Such tests are expensive, can lead to unnecessarily restrictive diets that limit nutritious food choices, and can delay appropriate diagnosis and treatment.