Protein bars are nutrition bars that contain a high proportion of protein to carbohydrates/fats.
Protein bars are a fast and convenient way to get more protein – which can increase protein synthesis, muscle mass and keep fat off. There are many health and performance benefits associated with a high protein diet. ... Most protein bars will contain around 20g of protein, 40g of carbohydrates, and 10g of fat.
A protein bar here and there is absolutely fine if you're in a rush with no time for a full meal, and the bar in question fits into your calorie needs for the day. Just because they're a convenient snack and healthier than a candy bar, however, doesn't mean you can eat them at will.