Final answer:
The claim that Lily should get 40-55% of her energy from protein is false; the recommended intake is about 15%. A balanced diet with proper nutrient intake is crucial for maintaining health.
Step-by-step explanation:
The assertion that a 22-year-old college student like Lily should get about 40-55% of her total energy intake from protein is false. According to nutritional guidelines represented in the provided passage, the recommended percentage of daily calories from protein is closer to 15%. Proteins are indeed essential nutrients that provide the amino acids necessary for producing new cells, and while the body requires higher protein intake during periods of rapid growth such as infancy and adolescence, a balanced intake is crucial at all times.
It's also important to note that excess dietary protein can be used for energy or stored as fat. The balance of nutrients, including carbohydrates, fats, and proteins, is vital for maintaining health. A diverse diet that includes an appropriate balance of all these nutrients is recommended, rather than a diet skewed excessively towards a single macronutrient.