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I agree
@Sue192, and would add that when actual engineers look at their medical conditions using an engineering approach, they realize that there was much mainstream medicine does not know.
@FatEmperor's story is a case in point. His journey started when several of his own blood markers were elevated. He went to three different doctors seeking the root cause of his elevated markers. Not one could provide an explanation that made sense to him as an engineer. He then did his own research (his expertise is in root cause analysis/complex problem-solving) and he found the root cause within a few weeks.
@DaveKeto is another example. He is taking on the conventional wisdom in lipidology.
Other points to consider: there is a saying in medicine along the lines of 'half of what you learn in medical school is obsolete before you graduate; the problem is, you don't know which half'. Another point, most physicians will agree that their undergraduate medical education in nutrition is very short indeed, I've heard some say a mere four hours. And lastly, the guild mentality, where professional groups (and this is not solely directed at medicine, I would include all licensed professions here) seek to restrict dissemination of knowledge to protect their status - is no longer fit for purpose (and no longer viable in the internet age, TBH). We need the knowledge that the brilliant minds in other disciplines bring to the health and wellness discussions, as well as the knowledge of lived patient experiences. We all benefit from this.
Thank goodness for the internet, this forum and others like it. I have learned so much.