However, keep in mind that lab testing may help some parents make the decision and stick with the GFCF Diet. The IGg food allergy test can also determine food intolerance. It does not check for peptides in the urine. This test is done by a laboratory screening a sample of blood drawn from the patient. We suggest that no matter what the results of the lab tests, whether or not you even have lab testing, try the GFCF Diet.
Many parents see dramatic changes the first few weeks.
Casein is one of the major proteins in the milk of all mammals including cows, goats, and humans. Dr. Reichelt in Norway, Dr. Cade at the University of Florida, and others found that urine samples from people with autism, PDD, celiac disease, and schizophrenia contained high amounts of the casomorphin peptide in the urine. We suspect that these peptides may also be elevated in other disorders such as chronic fatigue, fibromyalgia, and depression based on anecdotal reports of symptom remission after exclusion of wheat and dairy. Other related grains such as rye, barley, and oats also contain the sequence of amino acids found in gluten. Gliadorphin is very similar to casomorphin.