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How about considering different viewpoints?There's already consideration for different viewpoints inside the scientific consensus -- that's how it's formed. Yes, it's not perfect but better than its absense.
So, unless those different viewpoints follow the scientific method and are part of the scientific discussion, they are basically either kooks (like Willhelm Reich) or snake-oil salesmen (like, too many to mention).
>Main stream advice should always be questioned.
Usually mainstream advice on pragmatic issues is exactly what works and has been tried and true. (Not to be conflated with mainstream opinion -- on flakey matters, such as personal, political, aesthetic, moral etc subjects).
>Also, different diets work for different types of people, and there are 10000 other factors. You can't simply isolate one variable, complex systems don't care about your linear ideas.
All those are things that the scientific community knows already. So I don't see their relevance here.
Plus, while "different diets work for different types of people", they are not that different in the end, unless someone has a specific genetic condition. At best, some diets are easier, as a habit, for some people to follow than others (some can count calories, some can cut some specific food more easily, etc). But the ways they work (nutritionally) are the same, and the principles are the same. People are not unique snowflakes.
>That is assuming you are not suffering from a bias towards authoritarian sources. ;)
It's precisely the single person that's the "authoritarian source", and the scientific consensus, formed in a discussion, and under experimentation across the globe, that's the flexible and non-authoritarian source.