VOA慢速英语:越来越多美国人因健康原因而节食

obesity – n. a condition involving an excessive amount of body fat

carbohydrate – n. any one of various substances found in certain foods (such as bread, rice, and potatoes) that provide your body with heat and energy and are made of carbon, hydrogen, and oxygen

cholesterol – n. a substance that is found in the bodies of people and animals

survey – n. an activity in which many people are asked a question or a series of questions in order to gather information about what most people do or think about something

dietician – n. a person whose job is to give people advice about what to eat in order to be healthy

trend – n. something that is currently popular or fashionable