The Carroll method is a nearly 100 year old Naturopathic method of assessing dietary intolerances. The method originated, and is named after, Otis G Carroll. OG was originally a teacher with advanced rheumatoid arthritis. He found a cure for his condition with the New Orleans Naturopath Alex Le Doux. The extent of his cure was sufficient to motivate OG to become a Naturopath himself. He studied with Dr. Henry Lindlahr in Chicago, and subsequently moved to Spokane and established a practice in 1917.
OG is remembered for developing the Constitutional hydrotherapy treatment, bringing the old tradition of European water cure into the context of the modern office medical practice. However, at a certain point in the 1930’s OG was confronted by a series of cases which hydrotherapy alone could not cure. He began experimenting and eventually 
developed a procedure to detect a food intolerance. This intolerance, likely based on the ideas of Henry Lindlahr, was lifelong and unchanging. Some stronger patients could eat it without immediate problems, but all would eventually succumb to it, and all would be healthier if they avoided their intolerance.
As Dr. Carol said “Health must at all times come from and be maintained by digested foods. Naturopathic physicians understand this principle and use it to repair the damage done to organs, tissues and cells which have become depleted of the necessary constructive elements. These necessary elements can come only from digested foods. After a food is digested, it goes through the circulation to every organ, tissue and cell. Remember, this process begins first with the digestion of food, and no drug yet offered can rectify damage done by failure of digestion.”
OG taught this technique to three Naturopathic Doctors: Bill Carroll, Leo Scott, and Harold Dick. Harold Dick continued to practice in Spokane until his death in 1993. He taught his daughter Dr. Letitia Dick- Kronenberg, ND and Dr. Jared Zeff, ND, LAc. Dr Paul learned this technique from Jared and Letitia in 2018.
At this point the technique has been performed on over 500 000 patients. It has been an exceedingly valuable component to many excellent Naturopathic treatments. New resources have recently become available for packaged foods. Dr. Paul performs it on every new patient.
People may specifically book in for the assessment, if they do not wish to become patients. The stand alone cost is $80.
I have also made a video explaining the various differences between several methods of food intolerance evaluation in a video, which I posted on youtube, and which is below:
If you have any questions, please contact Dr. Paul, or schedule a free 15 minute consultation.