The medical profession is so behind the times on nutrition, it's a joke. In America, it's all about metabolic and inflammatory disorders resulting from the totally unnatural constant availability of carbohydrates in highly processed foods. Human beings did not evolve under these circumstances.
Instead, we've been advising low fat yogurt, laced with sugar, lots of pasta, which has very little nutrition in it, and diet soda, which is full of chemicals. Also, low salt, and salt is not a factor in the majority of people's htn.
Also, the industry has pushed drugs, drugs, drugs. Meanwhile, obesity is at all time highs. We are only maintaining life expectancy very expensively with advances in technology.