Japanese are a country that pays great attention to table manners. It seems very impolite to swallow them. Therefore, they mostly develop the habit of chewing and swallowing.
The benefits of chewing slowly are very many. First, it can increase the feeling of fullness and reduce the intake of food; Second, chewing and swallowing can grind food into smaller particles, making food easier to “transport” and “digest”. Especially for the elderly, because of the decline of peristalsis, chewing slowly can reduce the burden of the stomach and reduce the risk of gastrointestinal diseases.
In fact, in our traditional culture, there are also table etiquette culture such as chewing slowly, eating without words, etc., but it has been abandoned slowly today.