Final answer:
Water is the seventh class of nutrient in the six classes of nutrients.
Step-by-step explanation:
The six classes of nutrients include carbohydrates, protein, fat, vitamins, minerals, and water. Water is an essential nutrient that plays many important roles in the body. It helps regulate body temperature, aids in digestion, transports nutrients, and removes waste products. Therefore, water is considered the seventh class of nutrient.
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