I have a theory: Sports Medicine doctors have the mindset that they are trying to improve immediate performance, they are looking for direct measurable effects. They are the natural experimenters of modern medicine.

Where as most other types of doctors are helping to manage people, and don’t really have the expectation that their patients will improve. (Accepted the normality of irreversible degradation)

The LCHF/Keto/Carnivore space is filled with Sports Medicine doctors, more so then any other - at least that is the impression I get.