Nutrition for Health and Fitness: Fat in Your Diet
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Nutrition for Health and Fitness: Fat in Your Diet

   

Nutrition for Health and Fitness: Fat in Your Diet1

Linda B. Bobroff2

We hear a lot about fat, cholesterol, and heart disease these days. Sometimes it's hard to know what to believe. Most health authorities agree that Americans should eat diets low in fat, saturated fat, and cholesterol. Eating this way can decrease the risk of heart disease for many people.

This fact sheet will help you understand why it's a good idea to choose a diet that is low in fat, saturated fat, and cholesterol. It will also give you tips to help you meet these dietary guidelines. You will learn how to make simple changes in your eating habits to help reduce your health risks.

Getting the Facts

What is Fat?

Fat is a source of food energy, or calories. It helps the body absorb some vitamins. Fats are also part of the good taste of many foods.

Fats are made up of mixtures of fatty acids. These can be saturated, monounsaturated, or polyunsaturated fatty acids, depending on their chemical structure. Each gram of fat in a food supplies about 9 calories per gram, compared with about 4 calories per gram of protein or carbohydrates. This is why high-fat foods are also high in calories.

What is Cholesterol?

Cholesterol is a fat-like substance that is part of all human and animal cells. Cholesterol is needed to form hormones, cell membranes, and other body substances.

Your body is able to make cholesterol, so it is not needed in your diet. Some cholesterol in our diet is okay, but many adult Americans take in more than is recommended. This can cause health problems for some people.

FACT: Young children do need to have cholesterol in their diets, especially before the age of two.

Blood Cholesterol and Heart Disease

High blood cholesterol is a risk factor for heart disease. This means that your chance of having heart disease is greater if your blood cholesterol is high. Many Americans have high blood cholesterol. This is one reason why heart disease affects so many men and women in this country.

How do you know if your blood cholesterol is too high? Your total blood cholesterol level can be determined by a simple blood test. Most health authorities agree that it's best to have a total blood cholesterol below 200 milligrams per deciliter (mg/dl).

What About HDL and LDL?

You may have heard about "good"and "bad" cholesterol in the news. Cholesterol is carried in your blood in packages called lipoproteins. Lipoproteins are packages of fat, cholesterol, and protein. There are two basic types of lipoproteins - high-density lipoproteins (HDL) and low-density lipoproteins (LDL).

LDLs contain lots of fat and cholesterol. LDLs are called "bad" cholesterol because they can deposit cholesterol in the arteries. This increases the risk of heart disease. Eating a diet low in fat, saturated fat, and cholesterol can lower LDL levels in some people.

HDLs contain more protein and less fat and cholesterol. HDLs are sometimes called "good" cholesterol because they can remove cholesterol from the arteries. Exercise helps to raise HDL levels.

Dietary Fat and Blood Cholesterol

The way diet affects blood cholesterol varies among people. But, we know that people who eat low-fat diets tend to have lower blood cholesterol levels. The best advice is to eat a diet that is low in fat, especially saturated fat.

For some people, eating foods high in cholesterol can raise their blood cholesterol level. Some health authorities suggest that everyone over the age of two limit cholesterol intake to less than 300 milligrams a day.

Saturated fatty acids tend to raise blood cholesterol levels. The animal fats in whole milk dairy products, beef fat, and lard are high in saturated fatty acids. These foods also contain cholesterol. Some plant oils, like coconut, palm, and palm kernel oils also are high in saturated fatty acids, but they contain no cholesterol. Choose less often foods that are high in saturated fatty acids.

FACT: Some foods high in saturated fatty acids may contain little or no cholesterol!

Fats that contain mostly monounsaturated or polyunsaturated fatty acids may lower blood cholesterol. Olive, canola, and peanut oils are high in monounsaturated fatty acids. Safflower, corn, and soybean oils are high in polyunsaturated fatty acids.

High in Monounsaturated Fatty Acids:

High in Polyunsaturated Fatty Acids:

Even though these oils tend to lower blood cholesterol, you should limit the amount that you eat. All oils are high in calories, providing 9 calories per gram of oil.

FACT: One teaspoon of any oil contains 5 grams of fat, and provides about 45 calories.

How Much Fat Do We Need?

Americans eat about 34 percent of their calories as fat. It is recommended that we cut down to 30 percent or less. This means that if we eat 1,600 calories per day, we should eat 53 grams of fat or less per day. (See Recommended Fat Intake Chart. )

Recommended Fat Intake Chart

Daily Calories

Recommended Fat Intake (grams)

1,600

53 or less

2,200

73 or less

2,800

93 or less

FACT: Children under the age of 2 years should not be on a low-fat diet. Young children need adequate fat and calories to grow and develop.

What's on a Label?

Nutrition and ingredient information on food labels can help you choose foods with less fat, saturated fat, and cholesterol. Using food labels makes it easy to compare the fat, saturated fat, and cholesterol contents of foods. Food labels can help you plan healthy meals and a healthy diet.

Nutrition Labeling

Nutrition information is given in a table called Nutrition Facts. (See Figure 1 .) Total fat and saturated fat are listed in grams and as a percent of the Daily Value. The Daily Value is based on a 2,000 calorie diet. It is also based on getting 30 percent of your total calories from fat and 10 percent of calories from saturated fat.

The nutrition label lists number of calories from fat at the top, next to total calories. Calories from fat gives you an idea about how high in fat a food is. Remember that the "30 percent calories from fat" goal applies to your diet over time, not to a single food or meal. Foods high in fat can be a part of a low-fat diet. You just want to eat small amounts of high-fat foods, and eat them less often.

The nutrition label lets you compare the amount of fat in different brands of the same food. This is because the serving size of a food must be the same on all food labels. Serving sizes reflect amounts that people usually eat. Remember: If you usually eat a larger serving, then you get more fat than is shown on the label.

The cholesterol content of foods also must be on the label. Cholesterol is listed in milligrams and as a percent of the Daily Value. The Daily Value for cholesterol is 300 milligrams. Try to eat less than 300 milligrams of cholesterol, on the average, each day.

FACT: Cholesterol is found only in foods that come from animals.

Ingredient Labeling

The labels of most packaged foods include a list of ingredients. Ingredients are listed in order by weight. The item present in the greatest amount is listed first. Foods that have a fat or oil listed first will be high in fat and calories. Choose these kinds of foods less often.

Table 2.

Ingredients high in saturated fat:

(limit these)

Ingredients high in unsaturated fat:

(better choices)

Beef fat

Canola oil

Butter

Corn oil

Cream

Cottonseed oil

Lard

Olive oil

Cocoa butter

Peanut oil

Coconut oil

Safflower oil

Palm oil

Soybean oil

Palm kernel oil

Sesame oil


Sunflower oil

To avoid too much fat, use products listing any fat or oil first less often. To limit saturated fat in your diet, go easy on products with ingredients high in saturated fatty acids.

What About Food Label Claims?

Some food packages have claims about the food, like "low-fat" or "high fiber." Each claim has a definite meaning. Foods must meet the government definitions for the claim to be used. Claims related to fat and cholesterol in a food are listed in the table.

Table 3.

Fat and cholesterol label claims


If the label says:

It means that a serving has:

Fat-free


Less than 1/2 gram fat
Saturated Fat-free
Less than 1/2 gram saturated fat
Cholesterol Free


Less than 2 milligrams


Low-fat


3 grams or less fat


Low Saturated Fat


1 gram or less saturated fat and no more than 15 percent of calories from saturated fat


Low Cholesterol


20 milligrams or less cholesterol and 2 grams or less saturated fat


Reduced Fat, Less Fat


At least 25 percent less fat than the regular food


Reduced Saturated Fat, Less Saturated Fat


At least 25 percent less saturated fat than the regular food


Reduced Cholesterol, Less Cholesterol


At least 25 percent less cholesterol and 2 grams or less saturated fat

Cutting Down on Fats

Enjoy Low-Fat Foods

Use Low-Fat Ingredients

Use Low-Fat Cooking Methods

Using Your Favorite Recipes

What about grandma's famous meat loaf or mom's fabulous pecan pie? Do you have to give up your family's favorite foods because they are high in fat? No, you can enjoy all the foods your family likes. Just keep these tips in mind:

Use the tips given in CUTTING DOWN ON FATS to adapt your favorite recipes.

Low-Fat Recipes

The following recipes are reprinted with permission from The Good Book of Nutrition, Copyright 1987, American Cancer Society, Florida Division, Inc.

Lemon-Broccoli Salad

Almost any vegetable could be prepared in this manner - cauliflower, string beans, carrots, or mushrooms. Make up a colorful combination for an attractive appetizer, picnic fare or accompaniment to a main course.

2 pounds fresh broccoli
3 tablespoons vegetable or chicken broth
3 tablespoons fresh lemon juice
1-1/2 tablespoons olive oil
1/4 teaspoon salt (optional)
1/4 teaspoon pepper
Separate broccoli into florets, peel stems and slice crosswise. In a covered saucepan over medium heat steam broccoli in a small amount of water for 5 minutes or until tender-crisp. Drain, reserving liquid for soup. Immediately plunge broccoli into a bowl of ice water to stop cooking process. Drain.

In a blender container combine broth, lemon juice, olive oil, salt and pepper. Process until mixed. Put broccoli into a salad bowl. Add dressing; toss to coat. Marinate in refrigerator for several hours. Makes 6 servings.

Approx per serving: 74 calories; 4 grams fat; high fiber.

Mock Sour Cream

This luscious, low-calorie sour cream is just the right topping for baked potatoes.

1 cup low-fat cottage cheese
1/4 cup fat free milk or buttermilk
1/2 teaspoon (or more) fresh lemon juice
In a blender container combine cottage cheese and buttermilk. Process until smooth. Stir in lemon juice to taste. Makes 1 cup.

Approx. per serving: 10 calories; fat-free.

Lean Quesadillas

Quesadillas look like small Mexican pizzas. They make a nutritious meal in a hurry.

6 corn tortillas
3 ounces part-skim mozzarella cheese, shredded
Lettuce, shredded
Tomato slices or chunks
1 cup mock sour cream
Prepared salsa
In an ungreased hot skillet, toast tortillas on both sides. Top with cheese. Heat until cheese melts.

Place tortillas on serving plate. Layer lettuce, tomato slices and mock sour cream. Serve with salsa. Makes 6 servings.

Approx. per serving: 140 calories; 4 grams fat.

Orange Chicken

For a wonderful supper, serve this slightly sweet chicken with rice or pasta and a garden salad.

1 chicken, skinned and cut up
Salt and pepper to taste
All-purpose flour
2 tablespoons corn oil or safflower oil
1 large onion, sliced
1 can (6 ounces) frozen orange juice concentrate
Preheat oven to 350 degrees. Sprinkle chicken with salt and pepper. Coat with flour.

In a large skillet heat oil over medium heat. Add chicken. Cook over medium-high heat until brown. Put chicken into a 9 x 13 inch baking dish.

In the skillet, sauté onion in the pan drippings until tender. Spoon onion over chicken. Spread orange juice concentrate over chicken. Bake for one hour. Serve with rice. Makes 4 servings.

Approx. per serving: 340 calories, 13 grams of fat.

Tex-Mex Stir-Fry

For a slight change of pace, try this wonderful mixture of flavors. Chicken and brown rice can be added to this recipe if desired.

2 tablespoons corn or safflower oil
3/4 cup onion, chopped
3/4 cup green bell pepper, chopped
1 clove minced garlic
1-1/2 cups tomatoes, cored and cubed
3/4 cup water
1 tablespoon chili powder
1/2 teaspoon ground cumin
3 cups zucchini, diced
3/4 teaspoon salt (optional)
1 cup corn, fresh or frozen
In a large skillet, heat oil over medium-high heat. Add onion, green pepper, and garlic. Saute for five minutes or until onion is tender. Add tomatoes, water, chili powder, and cumin. Bring to a boil; reduce heat to low. Cover and simmer for five minutes. Add zucchini and salt. Simmer for five to eight minutes, or until zucchini is tender-crisp. Stir in corn and simmer for 1 more minute.

Approx. per serving: 150 calories, 5 grams of fat.

Test Yourself

See the quiz to determine How You Score on Fat.

How Do You Score on Fat?

Do the foods you eat provide more fat than is good for you? Answer the questions below, then see how your diet stacks up. (Check only one box for each question.)



Seldom or Never


1 or 2 Times a Week


3 to 5

Times a Week


Almost Daily


How often do you eat:


1.Deep-fat-fried or breaded foods?






2.Fatty meats such as bacon, sausage, luncheon meats, or fatty steaks and roasts?






3.Whole milk, regular hard cheeses, or ice cream?






4.High-fat desserts such as pies, pastries, or cakes?




5.Rich sauces or gravies?






6.Bread with lots of fat such as croissants or rich muffins?






7.Whipped cream, table cream, sour cream, or cream cheese?






8.Butter or margarine on vegetables, dinner rolls, or toast?






Take a look at your answers. If you have more than one or two responses in the last two columns, you may have a high fat intake. You can cut back on the amount you eat as well as the number of times you eat fatty foods. Use the tips in this fact sheet to help you lower your fat intake.



Footnotes

1. This document is FCS8128, one of a series of the Department of Family, Youth and Community Sciences, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: August 2002. First published: April 1990. Revised: August 2002. Please visit the EDIS Web site at http://edis.ifas.ufl.edu

2. Written by Linda B. Bobroff, Ph.D., RD, LD/N, Associate Professor, Foods and Nutrition, and reviewed by Isabel Valentin-Oquendo, M.S., RD, LD/N, Assistant-In and Curriculum Coordinator, Family Nutrition Program, Department of Family, Youth and Community Sciences, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville FL 32611.


The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. For more information on obtaining other extension publications, contact your county Cooperative Extension service.

U.S. Department of Agriculture, Cooperative Extension Service, University of Florida, IFAS, Florida A. & M. University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Larry Arrington, Dean.



Copyright Information

This document is copyrighted by the University of Florida, Institute of Food and Agricultural Sciences (UF/IFAS) for the people of the State of Florida. UF/IFAS retains all rights under all conventions, but permits free reproduction by all agents and offices of the Cooperative Extension Service and the people of the State of Florida. Permission is granted to others to use these materials in part or in full for educational purposes, provided that full credit is given to the UF/IFAS, citing the publication, its source, and date of publication.