Which nutrients provide energy to the body?

Fats, carbohydrates, and proteins are the primary macronutrients that provide energy to the body. Each of these nutrients plays a crucial role in metabolism and energy production:

1. Fats: These are a concentrated source of energy, providing about 9 calories per gram. They are essential for long-term energy storage, insulation, and supporting cell growth. Fats also facilitate the absorption of fat-soluble vitamins (A, D, E, K).

2. Carbohydrates: Comprising sugars and starches, carbohydrates are the body's preferred source of energy, especially for the brain and muscles during high-intensity exercise. They provide about 4 calories per gram. Carbohydrates are broken down into glucose, which is used immediately for energy or stored as glycogen for later use.

3. Proteins: While their primary role is in growth and repair of tissues, proteins can also serve as an energy source when carbohydrate and fat stores are low. They provide about 4 calories per gram. However, the body typically uses proteins for structural and functional purposes before turning to them for energy.

In contrast, vitamins and minerals, while essential for various physiological functions, do not provide calories or energy. Fiber, while beneficial