Fats and ethanol have the greatest amount of food energy per mass, 37 and 29 kJ/g (8.8 and 6.9 kcal/g), respectively. Proteins and most carbohydrates have about 17 kJ/g (4.1 kcal/g).
Treatment for OCD ideally involves a combination of cognitive-behavioural therapy and drug therapy. It is important that people with OCD receive treatment that is specific to OCD, from a fully qualified therapist. Some forms of traditional psychotherapy are not effective at relieving symptoms of OCD.
If you or a loved one has tried traditional outpatient therapy and would like to try a more intensive level of care, there are options. The IOCDF keeps a Resource Directory of intensive treatment centers, specialty outpatient clinics, and therapist who provide these various levels of services for OCD.