1. First, reduce food intake. Zhang Kaifeng is a fast-paced online celebrity. In the live broadcast, he revealed that he lost weight because he reduced his food intake.
2. Secondly, with proper exercise, Zhang Kaifeng often publishes videos of exercising in the gym.
Finally, he insisted on not eating junk food. Zhang Kaifeng said that he never eats junk food, which is why he is thin.