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You're technically correct. It's a formula, it's never 'wrong'. The issue is the mapping of the formula to health outcomes and categories and the limitations of it as a tool.

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But at a population level (as the article uses it) it’s mostly fine. Unless the sample skews tall or muscular like the Dutch or bodybuilders.

I wouldn’t put “denser” people in the same group as tall people. Having heavy bones is an old excuse for being skinny-fat which is unhealthy

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