Chronic fatigue syndrome causes such devastating tiredness or fatigue that you can't perform all of the normal, daily activities you used to. There are other symptoms as well, but fatigue lasting 6 months or more is the main one. Some people battle CFS for years. Chronic Fatigue Syndrome affects almost 1,000,000 Americans a year. Researchers do not know what causes CFS, but they believe this illness involves interactions between a dysfunction of the immune system and trigger agents such as viruses. Chronic Fatigue Syndrome causes incapacitating fatigue, pain, neurological problems and a list of symptoms that can represent other disorders. Each person living with CFS has a unique assortment of symptoms which fits into a recognizable pattern.

Allergic reactions to food, food intolerance (hypersensitivity), refined food, junk foods, food additives, and chemical contaminants in food can alter our moods and lead directly or indirectly to a constant state of low energy. People with Chronic Fatigue Syndrome frequently have sensitivities to foods, chemicals and other inhalants. These may be classical allergies – which are IgE (Immunoglobulin Type E)-mediated sensitivities or food intolerance (which is not IgE-mediated, so allergy tests, such as skin prick tests, are negative) and chemical intolerance are especially common. Patients showing evidence of this often find that the management of these sensitivities can be an essential part of improvement or recovery from the illness.