What is the meaning of on diet?

On diet means having control in one's daily eating and drinking habit for the purpose of health or beauty. Nowadays, there are many people on diet. It is because more and more countries are having better economy and many people do not have much limitation in food. However, tasty food are usually unhealthy which contain excessive fat, sugar, salt and chloresterol. They are the main cause of obese, heart attack and many chronic diseases. Also, the trend for pursuing a slim figure also caused many women on diet.

On diet is commonly explained as controlling the amount and
type of food and drink in take to result in
weight loss. However, diet is considering one's food and drink
in terms of its qualities, composition, and its effects on
health. Therefore, on diet is not nescessary be unbalanced on nutrient.