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Why are carbohydrates, fats, and proteins called macronutrients?
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nutrition
Vegetables are an important part of a balanced diet.
Carbohydrates, fats, and proteins are classified as macronutrients because they are the three basic nutrients that the body requires in relatively large amounts to survive and function properly.1
These substances are essential for maintaining the body's health and supporting life-sustaining processes:
- Proteins: These are vital for building and repairing tissues, and they serve as fundamental components of enzymes, hormones, and cells throughout the body.12
- Fats: These act as major structural components, provide an essential energy reserve, and serve as insulation and shock absorbers for the body.2
- Carbohydrates: These primarily function as fuel for the body, circulating as sugars or stored as glycogen in the liver and muscles to provide energy.2
Unlike micronutrients, which are needed in much smaller quantities, these macronutrients provide the bulk of the energy and structural material necessary for human biological activity.123