什么是5/2节食法？

　　想减肥的人们听说过5比2节食法（5/2 diet）吗？这种节食法指一周7天中有2天严格控制摄入的热量，其余5天正常进食。据说长期坚持就能达到减肥的效果，不过也要因人而异吧。

　　The 5:2 diet, also written as 5/2 diet, is a fad diet which involves severe calorie restriction for two non-consecutive days a week and normal eating the other five days, which originated and became popular in the UK, and spread in Europe and to the US. It is a form of intermittent fasting. The diet is claimed to promote weight loss and to have several beneficial effects on health. According to the UK National Health Service there is limited evidence on the safety and effectiveness of the diet; they advise people considering it to consult their doctor.

　　5比2节食法是一种时兴的节食方法，指一周7天中有2天严格控制摄入的卡路里，其余5天正常进食，控制热量的2天不是连续的。这种节食方法源自英国并在那里广受欢迎，之后传到了欧洲和美国。这是间断性禁食的一种方式，据说能够帮助减肥，还对健康有不少益处。不过，英国国民健康服务机构表示，这种节食方法在安全和有效性方面的证据很有限，建议人们尝试之前先咨询医生。

　　Men may eat 600 calories on fasting days, and women 500. A typical fasting day may include a breakfast of 300 calories, such as two scrambled eggs with ham, water, green tea, or black coffee, and a lunch or dinner of grilled fish or meat with vegetables, amounting to 300 calories. The daily 500 or 600 calorie limit requires small portions.

　　在禁食日，男性可以摄入600卡的热量，女性可摄入500卡。禁食日一天的餐食大概包括：早餐300卡，比如2个炒鸡蛋加火腿、水、绿茶或者黑咖啡，午餐或晚餐300卡，可以吃烤鱼或烤肉，再加点蔬菜。一天500或600卡的热量意味着每一餐分量都很小。