First of all, you can eat more high-calorie and high-fat nutrients on meat, such as beef, fish, duck and chicken. These foods contain more fat and calories, which can effectively provide enough calories for the human body, so that excess calories can be converted into some fat in the human body, which can help the human body gain weight.

Secondly, if you want to gain weight, you can eat more fresh fruits and vegetables with high sugar content, such as cantaloupe, pineapple and durian. These foods are high in sugar content and calories, which can not only provide a certain amount of vitamins, cellulose and trace elements for the human body to help coordinate the daily activities of the human body, but also increase the calories of the human body, thus helping the human body gain weight.

It can be seen that there are many foods that can be eaten if you want to gain weight, which can be decided according to your own choice.