Most doctors definitely are not literate on nutrition – they don't have time to go deeper into it, friend of mine in medical school hadn't even heard about oxidization of dietary fats and what it causes to the body. 

Few months ago I was diagnosed with ankylosing spondylitis after an excruciating back pain episode. I already knew about carnivore as a symptom relief for autoimmune disease – I'm not fully carnivore, though beef heavy with an AIP-type of diet but with dairy and egg yolks that I seem to tolerate. 

This has allowed me to go almost completely symptom free with no meds.

Upon my rheumatologist visit she said that my symptoms have improved so much that I can ditch the meds and only use the pain killers when needed, yet she didn't recommend an elimination diet due to "lack of scientific evidence". Completely ignoring my diet as a factor with my improvement. Just the idea of certain foods causing symptoms was foreign to her, even though there's thousands and thousands of anecdotes of a diet-autoimmune decease connection – and multiple rheumatic people I know via my friends have clearly noticed they can't tolerate pork (me included), even though they haven't done any type of elimination diet.

The scientific method is co-opted to mean whatever the authorities say. As if I can't reduce variables and test them on myself one by one and observe the effects of my body. Obviously, it's hard to isolate all variables, but by testing something again resulting with the same outcome, the more likely causational relationship we can attribute to it.

There is some change in tone in some areas, but after nation wide institutionalized regimes have pushed high-carb and high-seed oil diets for decades, with large agricultural and pharmaceutical tied interest with this view, the change is going to be slow and take time.