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Clear differences between organic and non-organic food, study finds


Organic Food

Organic apples and pears. Photograph: David Sillitoe for the Guardian


Powered by article titled “Clear differences between organic and non-organic food, study finds” was written by Damian Carrington and George Arnett, for The Guardian on Friday 11th July 2014 12.57 UTC

Organic food has more of the antioxidant compounds linked to better health than regular food, and lower levels of toxic metals and pesticides, according to the most comprehensive scientific analysis to date.

The international team behind the work suggests that switching to organic fruit and vegetables could give the same benefits as adding one or two portions of the recommended “five a day”.

The team, led by Prof Carlo Leifert at Newcastle University, concludes that there are “statistically significant, meaningful” differences, with a range of antioxidants being “substantially higher” – between 19% and 69% – in organic food. It is the first study to demonstrate clear and wide-ranging differences between organic and conventional fruits, vegetables and cereals.

The researchers say the increased levels of antioxidants are equivalent to “one to two of the five portions of fruits and vegetables recommended to be consumed daily and would therefore be significant and meaningful in terms of human nutrition, if information linking these [compounds] to the health benefits associated with increased fruit, vegetable and whole grain consumption is confirmed”.

The findings will bring to the boil a long-simmering row over whether those differences mean organic food is better for people, with one expert calling the work sexed up.

Tom Sanders, a professor of nutrition at King’s College London, said the research did show some differences. “But the question is are they within natural variation? And are they nutritionally relevant? I am not convinced.”

Organic Food

He said Leifert’s work had caused controversy in the past. “Leifert has had a lot of aggro with a lot of people. He is oversexing [this report] a bit.” Sanders added the research showed organic cereals have less protein than conventional crops.

The research was peer-reviewed and is published in a respected scientific journal, the British Journal of Nutrition. It has appeared on several academic websites.


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