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SERUM TOCOPHEROL, RETINOL AND ASCORBIC ACID STATUS IN THE HEALTHY LOCAL POPULATION OF TEHRAN

Vitamins are a class of nutrients which are essential for the body's various biochemical and physiological processes. The aim of this paper was to establish a reference range for serum concentration of vitamins E, A and C in healthy local population of Tehran. Serum concentration of these vitamins in 173 subjects, aged between 16 and 59 years analyzed by chromatography and spectrophotometric methods. The mean serum tocopherol, retinol and ascorbic acid were higher than the cutoff point concentration for nutritional adequacy. The tocopherol/cholesterol ratio, tocopherol and retinol concentration of serum were similar in men and women but serum concentration of ascorbic acid in women was significantly higher than in men. A significant correlation between serum tocopherol concentrations with age, triglyceride, LDL and HDL were observed. Serum retinol concentration with BMI, were also correlated. Sex was found to be the most important factor affecting serum ascorbic acid concentration and was significantly higher in females than in males.