How many calories are there in 1 gram of carbohydrates?

The correct answer indicates that there are 4 calories in 1 gram of carbohydrates. This is a well-established nutritional fact that is essential for understanding energy balance in nutrition and exercise physiology. Carbohydrates are one of the three macronutrients, along with proteins and fats, and they serve as a primary source of energy for the body, especially during high-intensity activities.

When assessing caloric content, it is important to recognize the equivalent energy values for these macronutrients. Carbohydrates provide a relatively quick source of energy due to their ability to be rapidly metabolized. Knowing that 1 gram of carbohydrates yields 4 calories helps in calculating total energy intake and expenditure, which is crucial for establishing dietary plans, optimizing performance, or managing body weight.

The other options do not align with the nutritional science pertaining to carbohydrates. For instance, proteins also yield 4 calories per gram, whereas fats provide 9 calories per gram, which significantly influences dietary choices based on energy needs and metabolic health. This understanding not only is vital for kinesiology students but also serves as a foundation for any health-related fields where nutrition is pertinent.