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 Is organic better? 
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Joined: July 3rd, 2007, 10:26 pm
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There has been a new meta analysis on this: expert reaction to study comparing the nutritional content of organic and conventional foods
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A meta-analysis published in the British Journal of Nutrition looked at 343 studies into compositional differences between organic and conventional crops, reporting differences including higher levels of certain anti-oxidants and lower levels of cadmium in organic crops. A before the headlines analysis accompanied this roundup.
Some interesting comments.

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July 11th, 2014, 3:50 pm
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Looks rather as though they had set out to prove something rather than find something out.

thats easy but not valid :)
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graph organic.png
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July 11th, 2014, 4:20 pm
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sandymere wrote:
Looks rather as though they had set out to prove something rather than find something out.
Sorry, who did?

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July 11th, 2014, 4:35 pm
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Short on time but an example from the link

"Multiple comparisons:
The authors have carried out a large number of comparisons, only some of which are presented in the main part of the paper. This leads to an increased likelihood of obtaining “false-positives”- in other words, the more differences you look for, the more likely you are to find one just by chance. "


To look until you find what you are looking for?


July 11th, 2014, 4:47 pm
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sandymere wrote:
Short on time but an example from the link

"Multiple comparisons:
The authors have carried out a large number of comparisons, only some of which are presented in the main part of the paper. This leads to an increased likelihood of obtaining “false-positives”- in other words, the more differences you look for, the more likely you are to find one just by chance. "


To look until you find what you are looking for?
Ah. In the original studies, but something the meta analysis has highlighted. Yes, that's a common tactic to arrive at the 'right' answer. Seen it loads of times in quack studies.

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July 11th, 2014, 4:57 pm
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Shame they don't test for the levels of "organic pesticides " I expect organic pesticides are safe, I mean just cause they are largely uncontrolled and untested whilst being used to kill things!!!!
http://www.ocf.berkeley.edu/~lhom/organictext.html

edit to add, good old Derris dust the organics favorite for many years lol
http://www.pan-uk.org/pestnews/Actives/rotenone.htm


July 16th, 2014, 3:56 pm
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Always makes me smile when you tell friends who insist on organic food that they use pesticides. There seems to be an assumption that organic means pesticides are never used.

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July 18th, 2014, 9:38 pm
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