Martha Archuleta, Extension Food and Nutrition Specialist
College of Agriculture, Consumer and Environmental Sciences New Mexico State University. (Print Friendly PDF)
Nutrition labels on processed food were first used in the 1970s to furnish consumers with nutrient information. Now, nutrition labels provide even more useful information (fig. 1).
Figure 1. New nutrition label format.
The Nutritional Labeling and Education Act of 1990 (NLEA) requires that food labels follow a standard format and provide this nutrition information:
- Standardized serving sizes based upon the amount of food the average person usually eats at one time.
- Servings per container.
- Total calories per serving.
- Total calories from fat per serving.
- “Daily values” of total fat, saturated fat, cholesterol, sodium, total carbohydrate, and dietary fiber per serving. Daily values are based on current nutrition recommendations for a 2,000-calorie diet.
- If package size allows, a footnote lists recommended daily values for total fat, saturated fat, cholesterol, sodium, total carbohydrate, and dietary fiber for diets of both 2,000 and 2,500 calories.
- Ingredients listed from most to least according to weight.
- Percentages of vitamins A and C and as well as percentages of the minerals calcium and iron needed to fulfill the daily value recommendations. Food companies may voluntarily list other vitamins and minerals.
- Figures that allow consumers to calculate calories per gram from fat, carbohydrates, and protein. (Rounding these figures occasionally results in a small discrepancy.)
- If a label uses a term such as “free”, “low”, “reduced”, or “light”, the food must conform to standardized requirements for using those terms.
- If a label makes health claims, the claims must meet specific nutrient levels or fulfill other nutrition requirements as determined by FDA or USDA.
NLEA permits a simplified label format for foods that contain insignificant amounts of seven or more major nutrients (fig. 2). The simplified label, commonly used on vegetable oils and soft drinks, must include the serving size, total calories, total fat, sodium, total carbohydrates and sugars, and protein.
Figure 2. Simplified formats.
Voluntary nutrition labeling is recommended for the 20 most commonly consumed raw fruits, vegetables, and fish. Grocery stores may use posters or leaflets to provide nutrition information.
Health Claims on Labels
Food labels may carry health claims if carefully controlled research has verified a nutrient’s contribution to good health. For example, a dairy product label may claim that eating the product may reduce the incidence of osteoporosis. Health claims may be made for the relationships between these nutrients and diseases:
- Calcium and osteoporosis
- Fiber-containing grain products, fruits, vegetables and cancer
- Fruits and vegetables and cancer
- Fruits, vegetables, and grain products that contain fiber and coronary heart disease
- Fat and cancer
- Saturated fat and cholesterol and coronary heart disease
- Sodium and hypertension (high blood pressure)
- Folate and neural tube defects (certain birth defects of the brain and spinal cord)
- Dietary sugar alcohol and dental caries
- Soluble fiber from certain foods and risk of coronary heart diesease
- Soy protein and risk of coronary heart disease
- Plant sterol/stanol esters (added to foods like margarine and salad dressing) and risk of coronary heart disease
- Whole grain foods and risk of heart disease and certain cancers
- Potassium and the risk of high blood pressure and stroke
Health claims coupled with the nutrition information on labels can help you select a healthy diet. For example, a person with diabetes can use nutrition information to manage their intake of fat, sugar, sodium, and dietary fiber. (Note that the serving size on the diabetic exchange list differs from the serving size on a food label.) A person with heart disease can use information on fat, saturated fat, sodium, and cholesterol so they can select a heart-healthy diet. Using nutrition information, consumers can easily select foods low in fat and high in dietary fiber, vitamin A, and vitamin C to reduce their cancer risk.
Exemptions to Nutrition Labels
While almost all processed foods must have nutrition labels, these foods are exempt:
- Foods with no nutritional significance (plain coffee, tea, and most spices).
- Restaurant foods.
- Foods sold in bulk form (not for sale to consumers).
- Foods served for immediate consumption (as in hospitals, cafeterias, or airplanes).
- Foods prepared on-site in food stores (deli, bakery, and candy store items).
- Foods sold by food service vendors (mall cookie counters, sidewalk vendors, and vending machines).
- Foods in very small packages (less than 12 square inches). However, the manufacturer must provide a telephone number or an address for consumers to obtain nutrition information.
- Foods produced by small businesses.
- Medical foods
Calculating Percent Daily Values
Use nutrient and daily value information on labels to that assure you and your family get enough nutrients for growing and maintaining your health. The standard nutrition label provides daily values for fat, saturated fat, cholesterol, sodium, carbohydrates, dietary fiber, and protein for 2000- and 2500-calorie diets, but what if your diet is not a 2000-or 2500-calorie diet? Table 1 shows adjusted percent daily values for diets with more and fewer calories.
Table 1. Adjusted percent daily values for various calorie levels
|Total fat less than||52 g||65 g||72 g||80 g||91 g||104 g|
|Saturated fat less than||13 g||20 g||22 g||25 g||28 g||32 g|
|Cholesterol less than||300 mg||300 mg||300 mg||300 mg||300 mg||300 mg|
|Sodium less than||2,400 mg||2,400 mg||2,400 mg||2,400 mg||2,400 mg||2,400 mg|
|Total carbohydrates||240 g||300 g||330 g||375 g||420 g||480 g|
|Dietary fiber||16 g||25 g||28 g||30 g||35 g||40 g|
|Protein||40 g||50 g||55 g||63 g||70 g||80 g|
Nutrition labels, the Dietary Guidelines for Americans, and the Food Guide Pyramid are a valuable team to consumers seeking a healthy diet. For additional information, contact your county Extension office or the USDA Food and Nutrition Information Center, Web sites: www.nalusda.gov/fnic and FDA Web site: www.fda.gov.
To find more resources for your business, home, or family, visit the College of Agricultural, Consumer and Environmental Sciences on the World Wide Web at aces.nmsu.edu.
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New Mexico State University is an equal opportunity/affirmative action employer and educator. NMSU and the U.S. Department of Agriculture cooperating.
Reprinted and electronically distributed May 2003, Las Cruces, NM.