nutrition: Fats

Fats (see fats and oils) in the diet provide a concentrated source of energy; 1 gram of fat supplies about 9 calories as opposed to only 4 calories per gram of carbohydrates and protein. Fats in the body, in addition to acting as a source of stored energy, supply physical protection and insulation for tissues and form important portions of cell membrane structure. Fats also aid in the absorption of the fat-soluble vitamins (vitamins A, D, E, and K) from the intestine. Milk, butter, meat, and oils are important sources of fat.

Sections in this article:

• Introduction
• Specialized Diets
• The Food Guide Pyramid
• Importance of Good Nutrition
• Vitamins, Minerals, and Water
• Fats
• Carbohydrates
• Proteins
• Human Nutrition
• Bibliography

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2024, Columbia University Press. All rights reserved.

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