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There are six major classes of nutrients found in food: carbohydrates, proteins, lipids (fats and oils), vitamins (both fat-soluble and water-soluble), minerals, and water. These six nutrients can be further categorized into three basic functional groups.
Eating a well-balanced diet provides the various nutrients the body needs. Photo Credit Tijana87/iStock/Getty Images. The human body requires a variety of different nutrients to support normal growth, development and functions. Macronutrients include those nutrients needed in large quantities including carbohydrates, proteins and fats. Micronutrients, those needed in smaller amounts, are divided into essential vitamins, which consist of organic compounds and essential minerals.