Abstract
We report the dietary intake of selected nutrients in apparently healthy adults and children and its correlation with circulating levels of serum leptin and resistin. In this observational study, 47 Saudi children (mean age 13.1 ± 2.8 year) and 47 adults (mean age 45.7 ± 10.5 year) were recruited. Anthropometric data and lipid profile were obtained. Food intake was assessed by a food questionnaire and a 24-hour diet recall method. The dietary intake of selected nutrients was compared with the estimated average requirement (EAR) or adequate intake (AI) for establishing nutritional status. Results demonstrated that the levels of choline and calcium intake were significantly lower than the EAR in adults (p= 0.01 and 0.04, respectively) and relatively low in children. The level of manganese in adults was significantly higher (p= 0.02) than their AI level. The increasing levels of dietary vitamin B6 and B12 were associated with a significant increase in serum concentrations of leptin in adults and children (p=0.02). Overall, the dietary intakes of selected nutrients in Saudi adults and children were not adequate with most of them below cut-off EAR values except for essential amino acids.
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