NAET is an alternative allergy treatment developed by Dr. Devi Nambudripad that aims to eliminate allergies through reprogramming the nervous system. It involves muscle testing to identify allergens, then holding vials of substances while receiving acupressure to desensitize the patient. Studies on NAET have found it significantly reduces allergy symptoms and test results, with over 80% of patients experiencing relief. However, more research is still needed due to NAET only being studied by its founder's research organization.