Is BMI an Accurate Measure of Health?

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The discussion highlights findings from a Science Daily article indicating that nearly half of individuals classified as "overweight" by BMI metrics are actually healthy according to more comprehensive health assessments, while around 30% of those with a "normal" BMI may be unhealthy. It emphasizes that BMI can serve as a useful tool for physicians, who understand its limitations, but warns against its indiscriminate use by employers and insurance companies. The conversation points out that the health risks associated with being overweight, such as metabolic syndrome and cardiovascular disease, are often long-term concerns rather than immediate health issues, particularly for younger individuals. Additionally, the study's lack of focus on age demographics is noted, suggesting that it may not adequately represent the health status of older populations more prone to disease.
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I saw this article this morning:
http://www.sciencedaily.com/releases/2016/02/160204042240.htm

According to the article close to half of the people considered "overweight" by the BMI are in fact healthy by other more rigorous metrics, and about 30% of those with a "normal" BMI are unhealthy.

I would argue that like any other metric, BMI can be used as a tool by physicians to evaluate health, but that's because physicians are generally aware of it's limitations. The danger comes in when employers and insurance companies start applying it blindly.
 
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The health issue of obesity and overweight as it is usually posed is that these people are at more risk of developing metabolic syndrome or cardiovascular disease later on in life not that they have it. If you are young enough you are usually healthy. Smoker are healthy until they develop lung cancer or COPD.

There is no reference to age so It seems they studied the whole population not the part (>60 yrs) that is more likely to manifest a disease process.
 
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