Case reports with controlled observations of dietary interventions are more convincing than anecdotes.

“case reports are different case reports are usually one case report and it it's different because it means that somebody's taken the time to outline a clear case based on our current medical thinking and they then describe a series of events that like we we started a diet and things change dramatically and then the patient stopped the diet and things got worse again and then we restarted the diet got better again and then the patient cheated again and then things got worse again and then we started the diet again”