To estimate dietary calcium intake of three groups of adolescent females ages 11-12 years, 13-14 years, and 15-18 years during four separate 2-year time periods from the years 1980-92 ; and to identify their food sources of calcium.
Nutrient intake survey based on 14-day food consumption records collected from four national representative samples of 4,000 United States households.
Dietary calcium consumption declined significantly (p<. 01) over the 10-year period for the 15-18 year olds.
Calcium intake was significantly lower for 13-14 year olds compared to the youngest age group, and for 15-18 year olds when compared to the two younger age groups for all four study periods (p<. 01).
Over 90% of all adolescent females consumed<100% of the RDA for calcium during all data collection periods.
The percentage of adolescent females who consumed less than two-thirds of the RDA increased with age.
Seventy-seven percent of 15-18 year olds consumed below this level from 1990-92.
Milk and milk products were the best food sources of calcium contributing over one-half of the calcium to the diet.
This percentage declined over time and with age to 44% for the 15-18 year old females in 1990.
This drop can be attributed to a 7-12% decline in fluid milk consumption for the 11-12 year olds and 15-18 year olds, respectively. (...)
Mots-clés Pascal : Consommation alimentaire, Calcium, Régime alimentaire, Nutrition, Adolescent, Homme, Femelle, Etats Unis, Amérique du Nord, Amérique
Mots-clés Pascal anglais : Food intake, Calcium, Diet, Nutrition, Adolescent, Human, Female, United States, North America, America
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0213527
Code Inist : 002B29B. Création : 21/05/1997.