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by HyperSane
1215 days ago
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Self-reported calorie consumption is worthless. But a reader questions the methodology of the researchers: “My main concern is that the calories are almost assuredly self-reported, which is notoriously unreliable.” Another reader agrees: In the 1980s, we weren’t walking around with a computer in our pockets to look up accurate calorie counts for everything that allowed us to store an accurate list of everything we’ve eaten and compute the calories based on that database. It was 100% self-reporting and calorie lookups “from memory” or done manually (complete with calculations) long after the fact. So the reports based on that old data might be suspect.
But another reader notes: The study authors addressed that point somewhat:
Whether self-reported dietary intake accurately reflects an individual’s true dietary intake has been questioned. Indeed, doubly-labelled water studies typically show that individuals underreport their energy intake, and that the magnitude of the underreporting may be larger in people who are obese.
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The fact of the matter is, people weighed less in the 80s then they do today. No amount of stretching can change this quantitative measurement. So something must've changed. What changed?
You can continue to talk about calories in and calories out just like we can blame the overdose problem on people doing too much heroin. Again, while YOU can do that, it's not a very useful position.