12 years old 130 kg, indicating that the child is obviously overweight. At this time, children need to take the initiative to control weight gain and lose weight. Common methods are as follows:

1. Adjust your diet: When you lose weight, you should ensure the normal growth and development of your body, keep up with the necessary nutrition, adjust your diet, try to be light, choose a low-calorie and low-sugar diet, and try not to eat snacks. You can recommend eating milk, oats, grapefruit, tomatoes, wax gourd and carrots, and pay attention to balanced nutrition.

2, strengthen exercise: on the basis of strict control of diet, strengthen physical exercise, a certain amount of swimming every day, such as skipping, running, swimming. These exercises can consume excess calories in the body and control the rate of weight gain.

In addition, in daily life, we should also pay attention to establishing a good lifestyle, ensure adequate sleep, let children set a weight loss goal every day, write a weight loss diary, and gradually achieve the effect of weight control and weight loss.