Stop eating when you are 80% full

At every meal, stop eating when you are starting to feel full.
Of course, there is no way to know when your stomach is 80% full. However, you can put aside the extra side dish, snack, or dessert after every lunch. You will start to notice the benefits of eating less in just a few weeks.

To eat less, pay attention to the way your food is served.
According to the Japanese, food is best served in five small plates on a tray: four small plates for the side dishes and a slightly larger plate for the main dish. The number of plates creates the illusion of having a lot of food on the table, even if you are eating less.