Proteins:
– Building Blocks: Proteins are crucial for building and repairing tissues, including muscles, skin, and organs.
– Enzymes and Hormones: They are involved in producing enzymes and hormones that regulate various bodily functions.
– Immune Function: Proteins are vital for a healthy immune system, helping to fight off infections.
– Energy: While not the primary energy source, proteins can be used for energy, especially when carbohydrate intake is low.

Carbohydrates:
– Primary Energy Source: Carbohydrates are the body’s main source of energy. They are broken down into glucose, which fuels cells, tissues, and organs.
– Brain Function: The brain relies heavily on glucose for proper functioning.
– Stored Energy: Excess glucose is stored as glycogen in the liver and muscles for later use.
– Digestive Health: Fiber, a type of carbohydrate, aids in digestion and helps maintain bowel health.

Fats:
– Energy Storage: Fats are a concentrated energy source, providing more than double the calories per gram compared to proteins and carbohydrates. They are stored in adipose tissue for later use.
– Cell Structure: Fats are essential components of cell membranes, maintaining cell integrity and function.
– Hormone Production: They are involved in the production of hormones, including sex hormones and those regulating metabolism.
– Nutrient Absorption: Fats aid in the absorption of fat-soluble vitamins (A, D, E, and K).
– Insulation and Protection: They provide insulation to maintain body temperature and protect vital organs.