This meal plan provides 1500 calories through a variety of fruits, vegetables, whole grains, nuts and soy products. The plan is balanced with approximately 14% of the calories from protein, 32% from fat and 55% from carbohydrate. When trying to lose weight, creating a calorie deficit either by eating less or increasing physical activity is necessary. Many people choose to follow a 1,500-calorie diet plan to jumpstart weight loss and control their food intake.