Compare two snack options using nutrient density: Snack A provides 50 'nutrient units' per serving and 80 kcal per serving. Snack B provides 10 'nutrient units' per serving and 250 kcal per serving. Which snack is more nutrient-dense and what is the nutrient density calculation for each (nutrient units per kcal)?

• A. Snack B is more nutrient-dense; Snack A has 0.04 and Snack B has 0.625 nutrient units per kcal, making Snack B superior because it's higher in energy.
• B. Both snacks have equal nutrient density because nutrient units and calories are independent metrics and cannot be ratioed to one another meaningfully in dietary decisions.
• C. Snack A is more nutrient-dense; Snack A = 0.625 nutrient units per kcal, Snack B = 0.04 nutrient units per kcal.
• D. Snack A is more nutrient-dense but only if nutrient units are divided by grams of carbohydrate rather than by calories, so no direct kcal-based comparison is appropriate in this situation.

Answer: (C)