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The four major macromolecules are carbohydrates, lipids, proteins, and nucleic acids.
Carbohydates provide energy, store energy, and spare protein and fat. Bread, pasta, and grains are high in carbs.
Lipids provide energy to producing hormones. They are in butter, vegetable oil, and cholesterol.
Proteins do most of the work in cells and are required for the structure, function, regulation of body tissues and organs.
Nucleic Acids make up genetic information in living things.
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