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A comment on Risk of dementia linked to diet low in fruits, vegetables, beans, tea: study. Parent comment

Re:Risk of dementia linked to diet low in fruits, vegetables... by can16358p on Thursday November 11, 2021 @11:22AM (#29189697)
If the samples are TRULY random and not within a specific culture/society I doubt we need that. But whether it is is another question.
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Re:Risk of dementia linked to diet low in fruits, vegetables... by loeg on Thursday November 11, 2021 @11:28AM (#29189799)
This is a self-report survey about historical diet. It's basically meaningless regardless. People that think they're healthy will report that they ate a lot of foods they currently think are healthy, not what they actually ate. This is true even if people are asked days later, much less years.
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Re:Risk of dementia linked to diet low in fruits, vegetables... by YetAnotherNick on Thursday November 11, 2021 @11:27AM (#29189772)
Even if the sample is truly random, this is not a controlled study and there are correlated behaviour.
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