Carbohydrates, proteins, and fats are the three macronutrients that provide the body with energy and building blocks for growth and repair. Vitamins are micronutrients that are essential for various bodily functions but do not provide energy.

Carbohydrates are the body's primary source of energy. They are broken down into glucose, which is then used by cells for energy production.

Proteins are essential for building and repairing tissues, as well as producing hormones and enzymes.

Fats are stored in the body as energy reserves and also help to insulate the body.

Vitamin D is essential for the absorption of calcium, which is important for bone health.

Iron is essential for the production of red blood cells, which carry oxygen throughout the body.

Potassium is essential for the proper functioning of the nervous system, as it helps to regulate nerve impulses.

Glucose is the body's primary source of energy and is used by cells to produce energy.

Amino acids are the building blocks of proteins and are essential for their synthesis.

Nucleotides are the building blocks of DNA and RNA and are essential for their synthesis.

Phospholipids are the major components of cell membranes and are essential for their synthesis.

Amino acids are the building blocks of proteins, including hormones, and are essential for their synthesis.

Amino acids are the building blocks of proteins, including enzymes, and are essential for their synthesis.

Amino acids are the building blocks of proteins, including neurotransmitters, and are essential for their synthesis.

Amino acids are the building blocks of proteins, including antibodies, and are essential for their synthesis.