Do you enjoy eating hamburgers , hot dogs or French fries? Do you like coke, sweets or ice cream? If your answers are " Yes" , you must be careful with your health , because most of them are junk food(垃圾食品)!
Many people like fast food. McDonald's and KFC are popular fast food restaurants around the world. You can order your food and drinks right away at the counter(柜台). You can get your meal in three minutes. Then you can eat there or take it away.
But all these food is junk food. Junk food has lots of fat, salt and sugar, but few nutrients(营养物). Most doctors say junk food is not healthy. It is bad for your teeth, stomach(胃) and heart(心脏).
In fact, it's OK to have junk food sometimes. You can have it twice a month and it's not a big thing for your health. But you'd better not eat junk food more often.
