North Carolina CNA Written Practice Exam - Practice Test, Prep & Study Guide

The primary goal of a low-calorie diet is to decrease caloric intake in order to induce weight loss. By consuming fewer calories than the body expends, a person creates a caloric deficit, which is essential for weight reduction. This approach is often employed for those looking to lose excess body weight, improve overall health, and reduce the risk of weight-related diseases.

Reducing calorie intake can lead to weight loss by prompting the body to utilize stored fat for energy, therefore contributing to a healthier weight. This diet is typically structured with an emphasis on nutrient-dense foods to ensure that despite the lower calorie count, individuals can still meet their nutritional needs.

The other options relate to energy levels, weight gain, and muscle mass, but they do not align with the fundamental purpose of a low-calorie diet. The primary focus remains on creating a caloric deficit for weight management.