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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.
Foods from different food groups provide all essential nutrients required for health. Carbohydrates, proteins, fats, water, vitamins and minerals are the six classes of nutrients that your body needs for survival, growth and to maintain health. A balanced diet comprising whole grains, fruits, vegetables, meat and dairy foods is the best way of ensuring that you are getting all these nutrients.