I wouldn't say everyone knows. My father thinks Caesar salad is healthy and recently told me he learned that cans have nutritional labels on them, but he doesn't understand them.

Yep, information about this stuff is an individual solution to a systemic problem.

As a GP, I wholeheartedly agree. I have a minor in nutrition before studying medicine. I try to talk to my patients and they brush me off. My clinic has a dietitian, and they NEVER want a meeting with her. The only exception has been pregnant women.

I still do agree some more teaching could be helpful, but it's likely only helpful in POST-graduate training, like, family medicine. Future surgeons, for instance, aren't likely to need depth on nutrition, and the degree is already very loaded without much room to trim.