Medicine
Core Concepts in Nutrition
Quick fact
Your body can get energy from all three macronutrients, but only carbohydrates and fats are the preferred fuels; protein is mainly for building and repairing tissues.
Why this is interesting
You eat every day, but have you ever wondered exactly what your body does with that apple or slice of pizza? The answer lies in a few core concepts that turn food into fuel, bone, and brainpower.