Health Encyclopedia

Balanced diet

Definition

A balanced diet means getting the right types and amounts of foods and drinks to supply nutrition and energy for maintaining body cells, tissues, and organs, and for supporting normal growth and development.

Alternative Names

Well-balanced diet

Function

A well-balanced diet provides enough energy and nutrition for optimal growth and development.

Food Sources

Milk group (milk and milk products)

Cheese
Milk
Yogurt

Meat and beans group

Legumes (beans and peas)
Meat (chicken, fish, beef, pork, lamb)
Nuts and seeds

Fruit group

Apples
Berries
Grapes
Peaches

Vegetable group

Cauliflower
Lettuce
Spinach
Squash

Grain group (breads and cereals)

Enriched breads
Pasta
Rice
Whole-grain breads

Oil

Light salad dressing
Low-fat mayonnaise
Vegetable oil

Side Effects

An unbalanced diet can cause problems with maintenance of:

Body tissues
Brain and nervous system function
Growth and development

It can also cause problems with bone and muscle systems.

Recommendations

The term "balanced" simply means that a diet meets your nutritional needs while not providing too much of any nutrients. To achieve a balanced diet, you must eat a variety of foods from each of the food groups.

There are several guidelines available to help you plan your balanced diet. They include:

The Food Guide Pyramid
The U.S. Dietary Guidelines (RDA guidelines)

General Guidelines

Do not skip breakfast
Eat at least three meals each day
Eat foods from each of the food groups at every meal

The most important step to eating a balanced diet is to educate yourself about what your body needs, and to read the nutrition label and ingredients of all the food you eat.

New dietary guidelines from the U.S. Departments of Health and Human Services (HHS) and Agriculture (USDA) recommend fewer calories and smarter food choices.

Some of the key recommendations:

Follow a balanced diet that is low in saturated and trans fats, cholesterol, added sugars, salt, and alcohol, such as the Dietary Approaches to Stop Hypertension (DASH) Eating Plan.
Balance your calorie intake with exercise. Slowly decrease the amount of calories you take in while increasing exercise to prevent gradual weight gain over time. Exercise regularly and reduce activities in which you sit (such as watching TV).
Eat 2 cups (4 servings) of fruit and 2 1/2 cups of vegetables (5 servings) per day for an average 2,000-calorie per day diet.
Eat 3 or more ounces of whole-grain products per day.
Consume 3 cups per day of fat-free or low-fat milk or milk products.
Get fewer than 10% of calories from saturated fatty acids.
Avoid trans fatty acids.
Limit cholesterol intake to less than 300 mg/day.
Make total fat intake no more than 20-35% of calories. Choose "good" fats such as fish, nuts, and vegetable oils containing polyunsaturated and monounsaturated fatty acids. Lean, low-fat, or fat-free meats, poultry, dry beans, and milk or milk products are preferable. Total fat intake can approach 35% if most of the fats are "good" fats.
Stay away from added sugars.
Consume less than 2,300 mg (approximately one teaspoon of salt) of sodium daily, and limit added salt when you prepare food.
Do not consume more than one alcoholic drink per day for women, two per day for men. Certain people should not drink any alcohol.

References

Dietary Guidelines for Americans 2005. Rockville, MD: US Dept of Health and Human Services and US Dept of Agriculture; 2005.

Review Date:2/27/2008
Reviewed By:Patrika Tsai, MD, MPH, Assistant Clinical Professor, Pediatric GI, Hepatology and Nutrition, University of California, San Francisco, San Francisco, CA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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