Which group includes glycogen, essential amino acids, nonessential amino acids, complete proteins, saturated fats, unsaturated fatty acids, and polyunsaturated fatty acids?

• A. macronutrients
• B. micronutrients
• C. vitamins
• D. minerals

Answer: (A)

Macronutrients are the nutrients needed in larger amounts by the body to provide energy and serve as building blocks. The items listed fit into carbohydrate, protein, and fat categories: glycogen is a stored form of glucose (a carbohydrate); essential and nonessential amino acids are the components of proteins, with complete proteins containing all essential amino acids; and saturated fats, unsaturated fats, and polyunsaturated fatty acids are all fats. Because these substances are consumed in larger amounts and supply major energy and structural functions, they belong with macronutrients. Vitamins and minerals are micronutrients, required in smaller amounts.