Carbohydrates: Carbohydrates are the primary source of energy for the body. They are broken down into glucose and used as fuel for the brain and muscles. Good sources of carbohydrates include whole grains, fruits, vegetables, and legumes. Proteins: Proteins are essential for building and repairing tissues in the body. They also play a crucial role in the immune system, hormone production, and enzyme function. Good sources of protein include lean meats, fish, eggs, dairy, legumes, and nuts. Fats: Fats are important for absorbing vitamins and minerals, maintaining cell membranes, and providing insulation and cushioning for the body's organs. Good sources of healthy fats include nuts, seeds, avocados, olive oil, and fatty fish. Vitamins: Vitamins are essential for the body's normal functioning, growth, and development. There are two types of vitamins: fat-soluble and water-soluble. Good sources of vitamins include fruits, vegetables, whole grains, dairy, and fortified cereals. Min...