To assess knowledge about calcium and dietary intake among a sample of adolescents.
A survey consisting of 24-h dietary recall and 14 questions assessing knowledge about calcium was administered to 1117 adolescents (52% girls and 48% boys) attending the ninth grade in five public schools.
A majority (98%) believed that dietary calcium is healthy, strengthens the bones (92%), and may prevent osteoporosis (51%), but only a few were aware of the role of calcium in neuromuscular function (20%) and blood pressure regulation (15%). About 60% knew that adolescence is a critical period for peak bone mass accretion.
Only 19% were aware of the recommended dietary allowance (RDA) of calcium for adolescents [4 servings (1200 mg)/day]. The majority knew that dairy products are the main dietary source of calcium, but only 10% were aware of the calcium content of various dairy products.
Only 45% knew about nondairy sources of calcium.
The adolescents'main sources of calcium information were health teachers (55%) and parents (46%), while only 38% reported that their health care providers had discussed health benefits of calcium.
Dairy products accounted for most of the reported daily calcium intake, and the majority (79%) reported consuming dairy products daily. « Dislike » and allergy were the main reasons given for not consuming dairy products. (...)
Mots-clés Pascal : Comportement alimentaire, Connaissance, Calcium, Consommation alimentaire, Produit laitier, Comportement, Santé, Enquête, Attitude, Adolescent, Homme
Mots-clés Pascal anglais : Feeding behavior, Knowledge, Calcium, Food intake, Dairy product, Behavior, Health, Survey, Attitude, Adolescent, Human
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0220990
Code Inist : 002B29B. Création : 11/09/1998.