That's true as far as it goes, but the internal fight inside the medical research community was whether it was fat or sugar that was the culprit in a host of physical problems. Fat won in a slam dunk, even though it turns out to be wrong. Doctors are largely not researchers, and they are taught what was the conventional wisdom. There is no suggestion of malice, just bad (or at least overturned, but it was actually bad in this case) research that has been promulgated in the medical community. A lot of doctors think fat is bad and pay less attention to sugar.
The Guardian recently wrote about this: http://www.theguardian.com/society/2016/apr/07/the-sugar-con...
So, it's not bullshit to say a lot of doctors don't understand the nutrition.
OK, later! :)