Glossary: fats and oils

There are myriad culinary uses for fats and oils including cooking, tenderizing baked goods and adding richness, texture and flavor to foods. Fat is one of the body's basic nutrients, providing energy by furnishing calories. All forms of fat are made up of a combination of fatty acids, which are the building blocks of fats much as amino acids are the building blocks of proteins. Fats and oils are either saturated or unsaturated, the latter classification being broken down into monounsaturated and polyunsaturated fats. To illustrate the difference between the terms saturated, monounsaturated and polyunsaturated, picture a fat molecule as a train of passenger cars (carbon atoms). If every seat on the train is filled by a 'passenger'

From THE NEW FOOD LOVERS COMPANION, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.