What is the reason for eating three meals a day?

Because the time of three meals in the day is optimal for the human circadian rhythm, or is it because tradition is gradually being demolished?

A normal morning, when you wake up, there is no need to plan you already know you will eat 3 breakfasts, lunches, and dinners. Maybe each meal is a different dish, but it is rare to eat three meals a day.

The number of meals eaten per day is a cultural model that people have accepted because it is easy to maintain.

But have you ever wondered why? Is there any scientific explanation for having to eat three meals a day, or is it simply a habit, a common way of living?

Professor Paul Freedman of Yale University, who compiled the book "Food: The History of Taste" , argued that there is no biological reason for eating three meals a day. The number of meals eaten per day is a cultural model that people have accepted because it is easy to maintain. And it has become a concept that has been used for decades.

Since the 1950s, housewife June Clever in the 'Leave it to Beaver' series has always appeared with the family preparing breakfast, lunch and dinner. Even current programs and dramas have scenes where families eat breakfast together before going to work and dinner after going home.

But, according to Freedman, the habit of three meals is gradually being abolished with the rush of modern people. They bury their heads in their work, and take the time to exercise, watch television, so it's not uncommon to eat enough 3 meals.

The majority of people responded to 2 lunches and dinner, with the main meal at noon.

This is just one reason for the booming industry. In the United States, packaged food sales are expected to reach $ 77 billion by 2015; globally, the snack industry can reach $ 330 billion in 2015.

So when and why do we start eating 3 meals a day? Between the 1920s and 1930s, the US government recognized it as the most important meal of the day. The workers have since had a habit of eating lunch to fit both the nature of the work and the government's advice.

Recently, a survey conducted by the US Department of Agriculture showed that the vast majority of people responded to 2 lunches and dinner, with main meals at noon.