You won't gain weight! Because chicken breast is low in calories. This is because the protein content in chicken breast is very high, but the calories are very low, which is especially suitable for people who need long muscles for fitness. 100 grams of skinless chicken breast has only 133 calories, but if it is chicken leg meat, the calories are 18 1 calories. If it is100g chicken wings, the calories are higher, and it is 194 calories. Therefore, chicken breast is one of the foods with low calorie and rich nutrition in chicken. Low fat content. Chicken breast is tender. 100 grams of chicken breast has only 5 grams of fat, which can be said to belong to minced meat. Therefore, people who exercise may use chicken breast instead of pork and other foods with uncontrollable fat. I feel full. Chicken breast can also give people who are exercising to lose weight a strong sense of fullness, reduce people's desire to eat and prevent overeating. Some people may find that after eating a chicken breast, they won't feel hungry for about three hours.