Ａ　Ｈｅａｌｔｈｙ　Ｉｎｔｅｒｖｅｎｔｉｏｎ

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“After living all these years,now I find that I do notknow what is the rightfood to eat,”lamentedYe Feilang, a 61-year-old retiree living inBeijing. Ye said he had so many misconcep-tions about food in the past.