What are diets really doing to people? There is a lot of controversy right now about KETO and other diets. This is only going to get hotter; a lot hotter. How do we know the effect of treatment whether it be medication, radiation, surgery or a diet? Physicians and dieticians treat people based upon what they think they have seen and what they’ve been told works, but how effective are the treatments and what tests are being used to make those decisions?