Ketogen Pure Even if a lab test was possible to do, because there are so many different lab tests to look at all the different mechanisms - IgE "true" food allergy, IgG non-allergic "delayed" hypersensitivity, difficulty breaking down peptides, gastrointestinal enzymatic deficiencies, direct chemical reactions, toxic or intolerance reactions to food components or contaminants, etc - it is financially impossible and impractical to do them all. but only if done in a systematic and progressive manner.

https://greenlifenutrition.org/ketogen-pure/