用英文回答：What's a healthy diet?what's a un healthy diet?why we eat every day?

What's a healthy diet?
Balancing everyday basics:
Enjoy a variety of different foods from each food group Eat regularly, including breakfast Fruit and vegetables should make up one third of the food you eat (aim for 5 or more servings per day) Unrefined starchy foods (e.g. bread, other cereals, pasta, rice and potatoes) should also make up about a third of your food intake Eat smaller amounts of meat, fish and vegetarian alternatives, choosing lower fat options whenever possible Swap high fat dairy foods such as milk and cheese, for lower fat versions Limit foods in the fatty and sugary group, and use sparingly!
what's an unhealthy diet?
Intake of total or saturated fat, that almost one half of students exceeded the recommended intake of cholesterol, and that diet is as much of a risk factor for the initial stages of atherosclerosis in adolescents as it is in adults.
And there is a report that the typical Chinese restaurant menu is a sea of nutritional no-nos, a consumer group has found, which is harmful to human health.
why we eat every day?
Because we are hungry.

什么是健康饮食?什么是不健康的饮食?我们为什么要吃饭呢?

A healthy diet contains lots of fruit and vegetables; is based on starchy foods such as wholegrain bread,pasta and rice; and is low in fat (especially saturated fat),salt and sugar.
1.Base your meals on starchy foods
2.Eat lots of fruit and veg
3.Eat more fish
4.Cut down on saturated fat and sugar
5.Try to eat less salt - no more than 6g a day
6.Get active and try to be a healthy weight
7.Drink plenty of water
8.Don't skip breakfast
an unhealthy diet is on the contrary of the healthy diet.
the last question
you consume energy when act,think,even doing nothing and you have to make it up!you can get it from eating.that's it!