Energy bars are a great way to fuel your body before, during or after intense workouts or prolonged physical activity. With the growing popularity of energy bars, manufacturers have started coming up with various names to describe these nutrient-dense bars. Some of the synonyms you can use to refer to energy bars include protein bars, snack bars, workout bars, nutrition bars, fitness bars and power bars. These bars come in different flavors, sizes and nutritional profiles to meet the diverse needs of consumers. Whether you're looking to boost your energy levels, stay focused or build muscle, there is an energy bar that suits your needs.