例句：70% of the population is now overweight according to official figures.
含义：肥胖。Extrememly fat or overweight.
例句：Obesity is now a real problem for teenagers.
Teenagers who are obese are often bullied at school.
3. eating disorder
含义：饮食紊乱。A mental illness in which people eat far too little or far too much food and are unhappy with their bodies.
例句：Bulimia and anorexia are types of eating disorder. Both are becoming more common.
含义：营养/有营养的。Any substance which plants or animals need in order to live and grow.
例句：A healthy diet should consist of all the essential nutrients.
This meal is very nutritious.
含义：饮食。The food and drink usually eaten or drunk by a person or group. OR When someone eats less food, or only particular types of food, because they want to become thinner or for medical reasons.
例句：It is important to have a healthy diet. People must eat plenty of fruit and vegetables.
I’ve been on a diet now for four weeks, and I’ve lost about one kilo.
含义：过度饮食。Eating more than your body needs.
例句：There is evidence that overeating is one of the main causes of obesity..
含义：原料。A food that is used with other foods in the preparation of a particular dish.
例句：The ingredients of the dish include nuts, raisins, and parsley.
含义：过敏。A condition that makes a person become ill or develop skin or breathing problems because they have eaten certain foods or been near certain substances.
例句：Allergies are becoming more common, and this could be connected to diet.
If I eat nuts, I have an allergic reaction. I cannot breathe properly.
含义：添加剂。A substance which is added to food in order to improve its taste or appearance or to preserve it.
例句：This food is full of additives so I’m not going to eat it.
含义：阻止。To stop something from happening.
例句：Lots of exercise will prevent a heart attack.
The prevention of health problems should be encouraged by the government. For example, they could ban the advertising of fast food to children.
含义：口味。When you want to eat food.
例句：All that exercise has given me an appetite.
含义：规律的，周期的。Happening or doing something often.
例句：Regular physical exercise is important for good health.
含义：维生素。Any of a group of natural substances which are necessary in small amounts for the growth and good health of the body.
例句：Many people take vitamin supplements these days in order to keep their body healthy.
含义：糖尿病。A disease in which the body cannot control the level of sugar in the blood.
例句：Diabetes is becoming much more prevalent ( = common or widespread) amongst children.
含义：健康。The condition of the body and the degree to which it is free from illness, or the state of being well.
例句：Fruit has several health benefits.
Elderly people can have many health problems.
The health care in the country is deteriorating ( = getting worse).
There may be health risks from eating too much red meat.
Health education is very important if we are to prevent illness and reduce medical costs.
Sweden has one of the best health systems in the world.
The population of the country is in good health.
Lack of exercise can lead to poor health.
He has a very healthy diet.
I have a healthy appetite.
含义：纤维素。A substance in foods such as fruit, vegetables and brown bread, which travels through the body as waste and helps the contents of the bowels to pass through the body easily.
例句：A diet that is high in fibre is important in order to maintain a healthy body.