What is the kcal/g value for protein?

The caloric value of protein is well-established in nutritional science. Each gram of protein provides approximately 4 kilocalories (kcal). This value is crucial for understanding dietary energy sources and macronutrient distribution in various food items.

Protein is essential for numerous physiological functions, including tissue repair, enzyme synthesis, and hormone production, making its caloric contribution important in clinical settings, especially in nutritional planning for patients. Understanding this value helps inform dietitians and healthcare professionals in devising balanced diets, ensuring that patients receive adequate energy from their meals.

The other values presented do not align with the established caloric conversion factors for protein, underscoring the importance of having a strong grasp on nutritional science fundamentals.