Organic Food Is Healthier Confirms New Analysis

[knightmaar]

28. "Dietary history method"

Almost everyone one of them uses that phrase.

"Food consumption during the previous year was estimated using a dietary history interview"

That means that they ask you what you ate at the end of the year, or the the three year period. These studies have been shown to be problematic.

"... was assessed from seven day household food inventories ... "

Also problematic. People throw food away. That's how we were overestimated saturated fat intake and (possibly incorrectly) blamed it for heart problems. People were trimming away the way and discarding it, but "food inventory" said that people were averaging a lot of fat intake.

The lycopene study showed that eating tomatoes reduced prostate cancer risk. That was a well done study, but doesn't mention anti-oxidants generally.

One of the studies is comparing flavonoid intake to cardiovascular risk, not anti-oxidants to cancer risk.

The second link's abstract:
Intakes of beta-carotene, vitamins C and E, and flavonoids were not inversely associated with cognitive impairment or decline. This study raises the possibility that high linoleic acid intake is positively associated with cognitive impairment and high fish consumption inversely associated with cognitive impairment.

Correlations have been, sort of, vaguely, indicated. Studies where we specifically alter people's diets and find out if that improves things have not been as successful.