USDA Economic Research Service Briefing Room
" "  
Link: Bypass USDA Left navigation.
Search ERS

Browse by Subject
Diet, Health & Safety
Farm Economy
Farm Practices & Management
Food & Nutrition Assistance
Food Sector
Natural Resources & Environment
Policy Topics
Research & Productivity
Rural Economy
Trade and International Markets
Also Browse By


or

""

 


 
Briefing Rooms

Diet and Health: Food Consumption and Nutrient Intake Tables

Two sets of tables from ERS report food and nutrient intake and compare American's diets to recommendations of the Food Guide Pyramid and the 2000 Dietary Guidelines for Americans.

Food consumption tables provide estimates of food consumption in relation to recommendations from the Food Guide Pyramid.

Nutrient intake tables provide estimates of nutrient intake in relation to recommendations from the 2000 Dietary Guidelines for Americans.

For each set of tables, we first report average consumption/intake and the proportion of consumers meeting the recommendation. Then we look at consumption/intake by location, from which we can link dietary deficiencies to locations where foods are prepared. In both sets of tables, we report data for Americans ages 2 and older, children ages 2-18, and seniors ages 60 and older.

About Our Estimates

USDA's Continuing Survey of Food Intakes by Individuals (CSFII) measures foods actually eaten by individuals. The survey records food intake over a specific period of time (2 nonconsecutive days in 1994-96 using 24-hour dietary recalls). The survey collects demographic information, such as household size, income, race, age, and sex, and information on where a food was purchased, how it was prepared, and where it was eaten, in addition to food-intake data. The CSFII provides information for use in policy formation, regulation, program planning and evaluation, education, and research. For example, data from recent surveys have been used to evaluate the impact of food fortification on nutrient intakes, to estimate exposure to pesticide residues and other contaminants from foods, and to target nutrition assistance and education programs to those who need them most. The data are particularly valuable for measuring the effect of socioeconomic and demographic characteristics on food consumption.

Data for food consumption are available for CSFII 1994-96 only. Intakes of total fat, calcium, and iron over time can be estimated using data from Nationwide Food Consumption Survey (NFCS) 1977/78 and CSFII 1994-96. The CSFII 1994-96 data are also used to analyze intake of saturated fat, cholesterol, sodium, and fiber. See The Food Surveys Research Group website for for detailed information on these data.

USDA's Food Guide Pyramid provides general guidance to help Americans choose what and how much to eat to get the nutrients they need without excess calories or fat. The Pyramid specifies numbers of servings to eat from five major food groups (grain, vegetable, fruit, dairy, and meat) and gives advice about intakes of fats and added sugars. The recommended number of servings depends on the individual's caloric need, which in turn depends on the individual's age, sex, size, and activity level. CSFII 1994-96 data are the base for food intake estimates. CSFII 1994-96 data are the only USDA survey data that contain Pyramid servings data. In the analysis here, serving recommendations are taken from Dietary Guidelines for Americans, 2000 (Box 7, page 14).

There are important differences in interpreting the recommended number of servings in relation to food energy. In the calculation of the Healthy Eating Index, USDA's Center for Nutrition Policy and Promotion (CNPP) uses the Recommended Energy Allowance (REA) to come up with the recommended number of servings. However, USDA's Agricultural Research Service (ARS) uses the reported caloric intake to come up with the recommended number of servings. Another major difference lies on the derivation of recommended servings for the energy levels that are not specified. For example, the Pyramid recommends 9 and 11 servings of grain per day for those who consume, respectively, 2,200 and 2,800 calories or more per day. ARS uses 9 servings as the recommendation for those consuming 2,200 to 2,800 calories, while CNPP uses a linear interpolation to calculate recommended servings (for example, 10 servings for 2,500 calories). In the analysis here, we use the reported calories and linear interpolation for recommended servings. Consequently, ERS's estimates of the proportion of consumers meeting the recommendation are lower than ARS's estimates, even though the estimated number of servings are identical. It is also worth pointing out again that this study uses the recommendations from Dietary Guidelines for Americans, 2000.

We devise a benchmark food density for each individual by calculating the number of recommended servings for each 1,000 calories consumed. This benchmark is a useful measure to find out the source of deficiency in food intake. For example, the benchmark food density is 4.3 servings of grain per 1,000 calories for all consumers. The reported food density is 3.4 servings for all foods, 3.5 servings for foods prepared at home, 3.1 servings for restaurant foods, 3.8 servings for fast foods, 3.2 servings for school meals, and 2.8 servings for foods from other sources. To consume the recommended servings of grain, consumers need to pay more attention to their food choices when they eat out.

Go to the food consumption tables
Go to the nutrient intake tables

 

For more information, contact: Biing-Hwan Lin

Web administration: webadmin@ers.usda.gov

Updated date: August 17, 2004