keto diet       
noun [ C usually singular ]  informal uk/ˈkiː.təʊ ˌdaɪ.ət/ us/ˈkiː.t̬oʊ ˌdaɪ.ət/
 生酮饮食(通过摄入高蛋白高脂肪低碳水的食物进行减重的饮食方法)
a type of eating plan in which someone aims to lose body weight by eating a lot of foods that are high in fat, but few carbohydrates (= foods such as bread and potatoes), with the result that the body is forced to burn fats rather than carbohydrates
  The keto diet is a very low-carb and high-fat diet. 生酮饮食是一种碳水极低脂肪很高的饮食。 
 I have now been on a keto diet for the last 3-4 weeks. 在过去的3、4周里,我一直在吃生酮饮食。 
 Synonym: ketogenic diet
 - More examples
 - Is the keto diet good for you?
 - She says she's going back on the keto diet after gaining 15 pounds.
 - How do you eat a keto diet?