Chicken has a few more calories compared to beef of the same weight. 100g of chicken usually has 130kcal and lean beef usually has 125kcal. However, the fat content of different chicken and beef is different, so the calorie content will also vary. Chicken that contains more skin and fat will have more calories. Snowflake beef will also have more calories, up to 300-400 calories/100g. For the general population, both chicken and beef can be consumed with little difference in overall nutrition. It is important to note that comparisons are based on equal weights, which should be taken into account when choosing between the two. Neither muscle nor beef should be consumed in excess.