The "clean eating movement" has taken the world by storm in recent years.

近些年，“饮食健康运动”风靡全球。

The desire to eat more healthily can veer into an obsession, with rising numbers of people - mainly women in their 30s - suffering from orthorexia nervosa. 

“吃得更健康”，这一愿望可能会发展成强迫症。越来越多的人们患上“完美食欲症”，尤以30多岁的女性居多。

Orthorexics spend vast amounts of their time planning their food, resisting temptation, applauding themselves when they stick to their diet.

“完美食欲症”患者花大量时间计划吃什么，抵制诱惑，如果能坚持住饮食计划就会肯定自己。

In its severe form, orthorexia can lead to weight loss, malnutrition and even death, experts warn.

专家警告称，如果症状严重，“完美食欲症”会导致体重下降、营养不良，甚至死亡。

Sufferers typically cut out entire food groups - often in the mistaken belief they are unhealthy or their bodies are intolerant to them - thereby depriving themselves of essential nutrition and vitamins.

“完美食欲症”患者经常会选择放弃整类食物---错误地认为这类食物不健康，或者自己的身体不耐受，因此身体就会缺乏必须的营养和维生素。