Final answer:
The dietary caloric value for someone with diabetes should be geared towards maintaining the person's lean weight while controlling blood glucose levels, by balancing protein, fats, and restricted carbohydrates intake.
Step-by-step explanation:
The caloric value of the diet for a person with diabetes should be sufficient to maintain the person's appropriate lean weight. Considering the metabolic disorder diabetes mellitus, which is characterized by high blood glucose levels (hyperglycemia), the diet should be such that it controls these glucose levels. While calories are necessary for daily activity and maintenance of bodily functions, an excessive intake that surpasses energy expenditure will be stored as fat. Therefore, a balance of protein, fats, and restricted carbohydrates that meets energy requirements without excessive calorie intake is essential. The goal is to maintain energy balance and avoid additional stress on the body's ability to regulate blood glucose levels.