Dietary Vitamin A Requirement in Chinese Children and the New Technology of Dietary Assessment

Huazhong University of Science and Technology403 enrolled

Overview

Vitamin A deficiency remains a major public health problem in developing country worldwide. Young Children are considered to be at greatest risk of deficiency. However, there is little information on the vitamin A requirement of Chinese children. In the present study, about 400 children aged between 4 and 9 years old in a kindergarten and an elementary school of Shiyan City were screened before admission by questionnaire and anthropometric measurement. The vitamin A status of children was assessed by serum vitamin A level, relative dosage reaction and stable-isotope dilution technique. At the same time, their dietary vitamin A intakes were estimated by weighted-food dietary survey. The dietary vitamin A requirement in young children was determined on the basis of dietary vitamin A intakes in Children with adequate vitamin A level.

Study Type

OBSERVATIONAL

Enrollment

403

Conditions

Vitamin A Deficiency

Eligibility

Sex: ALLMin age: 4 YearsMax age: 9 Years

Medical Language ↔ Plain English

Inclusion Criteria: * well-nourished children with normal serum retinol(\>=1.40umol/L) Exclusion Criteria: * ongoing or previous illnesses, * having taken nutritional supplements within 3 months, * positive results in the fat absorption test or parasite test, * increased level of CRP (\> 8 mg/L), or * lower serum level of retinol (\< 1.40 umol/L)

Dietary Vitamin A Requirement in Chinese Children and the New Technology of Dietary Assessment

Overview

Conditions

Eligibility

Locations (1)