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In reply to the discussion: Sugar, not fat, exposed as deadly villain in obesity epidemic [View all]jeff47
(26,549 posts)We don't know what "ideal" weight is. Because we haven't done sufficient studies.
It could very well be that leanness can lead to death - for example a lack of calorie reserves could increase mortality due to sickness, and being slightly heavier fixes that.
The entire point of the study is to demonstrate that we do not know what is going on with any certainty. The objection you cite is based on the belief that we do know what is going on - that being thin is always good. We don't know that. What we know is being obese is not healthy. That doesn't mean being thin is healthy.
An example to move it away from weight: we know a body temperature of 120F can kill you. That doesn't mean a body temperature of 80F is healthy.
With weight, we know what "way too much" is. We don't know what "just right" is.
Considering you didn't know the difference between morbid obesity and overweight, I decided to use coloquial terms in an attempt to help you to understand. After all, you had just utterly butchered scientific terms.
Considering "result" doesn't mean what you think it means, I appear to be completely justified in that. Result is not causation when used in a scientific context. Result is what happened. It says nothing about why it happened.