* Why is it important for diets to change based on age, gender, or activity level?
* What would happen to the body if it relied only on one nutrient and lacked the others?
* Why do you think carbohydrates are used first by the body before fats or proteins?
* How might protein needs differ between an athlete and someone recovering from an illness?
* Why are fats sometimes called “energy stores,” and how do they protect the body in cold weather?
* How do vitamins and minerals act like “helpers” in different body systems?
* Why is water often described as the “universal solvent” in nutrition?