About junk food

Q：Can the food which provides us with unnecessary energy be called as junk food?


A：No, the food which provides us with unnecessary energy cannot be called as junk food.

Junk food is a pejorative term for food containing high levels of calories from sugar or fat with little protein, vitamins or minerals. Use of the term implies that a particular food has little "nutritional value" and contains excessive fat, sugar, salt, and calories.

When someone eats food containing unnecessary energy, it means he/she overeats and his/her daily calorie intake exceeds his/her daily requirement.

2015-04-19 00:08:57 補充：
Not only does junk food contain high levels of calories (energy), it also has little or no nutritional value. Food can be called as junk food only when they meet these two conditions.