Nutrients found in foods made from grains, fruits, and starchy vegetables that produce heat and energy are called?

• A. Proteins
• B. Vitamins
• C. Fats
• D. Carbohydrates

Answer: (D)

Carbohydrates are the nutrients that provide energy, and foods made from grains, fruits, and starchy vegetables are rich sources of them. When you eat these foods, carbohydrates are broken down into glucose, which is the body’s main fuel. This energý is released as heat during metabolism and used to power everyday activities and brain function. Carbohydrates deliver about 4 calories per gram, making them the primary energy source in a typical diet. Proteins can contribute energy if needed, but their main role is building and repairing tissues; fats provide a more concentrated energy source but aren’t described by those particular food groups as the primary energy source. Vitamins, by contrast, do not supply calories. So the nutrient described is carbohydrates.