In nutrition, macronutrients and micronutrients are vital for body function. Macronutrients include carbohydrates, proteins, and fats and provide the energy necessary for daily activities. Carbohydrates are the body’s primary energy source, proteins support muscle repair, and fats are essential for hormone production and nutrient absorption. Micronutrients, which encompass vitamins and minerals, play critical roles in bodily processes like immune function and bone health, but they do not provide energy. A balanced intake of both groups is vital for optimal health and performance.