摘要
1.Background China has seen drastic nutrition transition and food structure change with rapid economic growth in the past three decades.Specifically,the traditional fibre-dominated food system is being replaced by a western-style meat-dominated diet（Yu and Abler 2009;Tian and Yu 2013）.In traditional China meat was regarded as a rarity and normally consumed during festivals,now it has become daily food for most Chinese consumers.
1.Background China has seen drastic nutrition transition and food structure change with rapid economic growth in the past three decades.Specifically,the traditional fibre-dominated food system is being replaced by a western-style meat-dominated diet（Yu and Abler 2009;Tian and Yu 2013）.In traditional China meat was regarded as a rarity and normally consumed during festivals,now it has become daily food for most Chinese consumers.
