What nutrient the is needed in large quantities?

Macronutrients are needed in large quantities for the body to function properly. The three primary macronutrients are carbohydrates, proteins, and fats, each serving essential roles in energy production, growth, and overall health. Among these, carbohydrates are typically the primary source of energy for most individuals. It's important to balance the intake of all three macronutrients to maintain optimal health.