Bizarrely, the new organic diet substantially increased exposure to one type of phthalate, DEHP, suggesting the study was probably contaminated, raising questions about all the data and its conclusions.

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He follows an organic, vegetarian diet, and most of KuanShu's teaching takes place at its organic rice farm, which it opened in 2006.

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Best known as guru to the Beatles in the 1960s, the Maharishi Mahesh Yogi has 4 million followers worldwide who believe that a diet of meditation and organic foods is the path to personal enlightenment and world peace.

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Finally, the diet can be expensive (grass-fed, organic meats and eggs are more expensive) and inconvenient due to the limitation of food choices, both of which make this diet less practical for the average person long term.

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In technical terms, the process starts with the transformation of organic material using cost effective, intermediate technologies, into a highly digestive diet for pigs, ducks and chicken.

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