Profile: The Great Plains Laboratory, Inc. specializes in biomedical-based treatments such as testing of organic acid, amino acids, gluten, vitamin D, cholesterol & fatty acids, stool testing and other screenings. We deal with arthritis, autism spectrum disorders, bipolar disorder, chemical exposure, colitis, depression, Down syndrome and ear infections, to name a few. We evaluate abnormal levels of yeast and other components that cause symptoms of autism & many other diseases. We also market books, videos and audio tapes relating to our metabolic tests.