What are the six essential nutrients required for human health?

The six essential nutrients required for human health are carbohydrates, proteins, fats, vitamins, minerals, and water. Each of these nutrients plays a critical role in maintaining the body's functions and overall health.

Carbohydrates provide the primary source of energy needed for daily activities and bodily functions. They are crucial for fueling the brain and muscles. Proteins are essential for building and repairing tissues, making enzymes and hormones, and serving as structural components in cells and tissues. Fats are vital for energy storage, protecting organs, and aiding in the absorption of certain vitamins.

Vitamins are organic compounds that support various biochemical functions and are necessary for processes such as blood clotting, energy production, and immune responses. Minerals contribute to numerous bodily functions, including bone health, nerve transmission, and fluid balance. Lastly, water is essential for life, aiding in temperature regulation, nutrient transport, and waste elimination.

The other choices contain items that are either not considered essential nutrients or do not encompass all six essential nutrient categories required for optimal health. For instance, sugars and fibers are specific types of carbohydrates, but they do not represent the entirety of the carbohydrate category, and antioxidants are not classified as essential nutrients but rather compounds found in foods that may offer health benefits.