Moreover, in most cases where diet actually is a factor in a person's health problem, the solution is not to take vitamins but to alter the diet. Be wary of anecdotes and testimonials. If someone claims to have been helped by an unorthodox remedy, ask yourself and possibly your doctor whether there might be another explanation. Most single episodes of disease recover with the passage of time, and most chronic ailments have symptom-free periods. Most people who give testimonials about recovery from cancer have undergone effective treatment as well as unorthodox treatment, but give credit to the latter.
Some testimonials are complete fabrications.
Be wary of pseudomedical jargon. The use of concepts that are impossible to measure enables success to be claimed even though nothing has actually been accomplished. Don't fall for paranoid accusations. Unconventional practitioners often claim that the medical profession, drug companies, and the government are conspiring to suppress whatever method they espouse. No evidence to support such a theory has ever been demonstrated.