Whether you can eat half a catty of chicken breast depends on your physical condition and needs. From the point of view of nutrition, it is in line with human needs to consume 500 grams of chicken breast calories, protein and fat a day. Therefore, if a person's demand for chicken breast is not high, half a catty of chicken breast may be enough to satisfy his appetite. However, if a person needs more calories, protein or fat, half a catty of chicken breast may not be enough to meet his needs.

Generally speaking, eating enough is a personal problem, depending on personal needs and physical condition. If a person has a clear understanding of his dietary needs, then he can choose the right amount of food according to his own needs.