| Objectives:To improve children's development and iron and vitamin A nutritional status by nutrition fortified drinks, and to explor the new way in promotation of nutritional status of children in China.Methods:Randomized, controlled intervention study was conducted in this project.At September in 2009,6-8 year-old primary school students from families of similar social and economic background were selected with an equal number of male and female students.The selected students were divided into two groups. Every morning, the students of intervention group dranked 250ml of drinks and the students of the control group had their daily diet for one whole year from September the first in 2009. The 3-day 24 hour dietary recall method was conducted to investigate all the students nutritional status before and after the experiment, in the same time,physical development, grip strength, intelligence, blood iron and vitamin A levels and other related index were detected to evaluation the effects of nutrients fortified drinks on children's growth.Results:Ruisults showed that children's diatey energy and the other nutrients mentioned were not matched China 'dietary nutrients intake reference.Before the intervention,there was statistically significant difference in everage energy intake between the experimental group and the control group of girls(P < 0.05 ).As for the longitudinal comparison results of energy, vitamin A, calcium and iron dietary intake in intervention group, there was statistically significant difference in boys and girls'energy, vitamin A intake between before and after intervention ( P < 0.05 ), the girls iron intake before and after the intervention also has difference ( P < 0.05 );After the intervention, control group of boys, the energy, vitamin A of dietary intakes were higher than those of them before intervention. There were also statistically significant differences in female energy, calcium and iron intake ( P < 0.05 ).After the intervention, in intervention group and control group, exept the iron intake reached the national recommendations, energy and vitamin A intake were lower than the national standard.There were no statistically significant difference and in height and the increasing amount of height between intervention group and the control group of boys and girls Before and after intervention ( P > 0.05 ).Before intervention, there were statistically significant difference in weight between the two groups of boys and girls ( P > 0.05 ).However, after the intervention, the weight between the two groups of boys had a significant difference ( P < 0.05 ), female weight difference was not statistically significant ( P > 0.05 ). Between the two groups in body weight gain was statistically significant ( P < 0.05 ), the intervention group were higher than that in the control group in creased amount of body weight;Before the intervention, a significant difference of the nondominant hand grip strength was got between the male groups, the grip strength of the intervention group was lower than that of the control group ( P < 0.05 ), no statistical significance was not showed after the intervention.After the intervention, dominant hand grip strength of the intervention group increased more than that of the control group with statistically significant difference ( P < 0.05 );There were no statistically significant mental differences in male and female students between the intervention group and the control group before and after the intervention ( P > 0.05 ).Before and after intervention, there was no difference between boys' and girls' FER levels in the intervention group and the control group ( P > 0.05 ), After the intervention, the added FER level value between the two groups of boys and girls was statistically significant ( P < 0.05 ), the increased value of the intervention group was higher than that of control group. Before and after intervention, there were no statistically significant difference in boys'TFR levels and the increased value between the two groups ( P > 0.05 ). Before intervention, TFR levels of girls of intervention group were higher than those of the control group ( P < 0.05 ), after the intervention there were no significant difference in TFR levels and the increased TFR level value of girls and boys between intervention and control group.Iron levels of boys and girls between intervention and control group were not statistically and significantly different ( P > 0.05 ), however, statistical differences were showed after the intervention ( P < 0.05 ).After the intervention,added value of iron levels in the intervention group gils and boys was also higher than that of the girls in the control group ( P < 0.05 ).There were no statistic significances in serum retinol levels between the intervention group and the control group of girls and boys before intervention ( P > 0.05 ).However, after the intervention, differences in serum retinol levels between the intervention group and the control group of girls and boys were showed (P < 0.05 ), Serum retinol levels of the intervention group were heigher than those of the control group. Serum retinol level added value of boys and girls between between the two groups before and after the intervention were not statistically significant ( P > 0.05 ).Conclusion:1. The average energy and protein intake of children in Beijing shunyi district was insufficient, but the ratio of the three energy nutrients was reasonable. The dietary intake of various minerals and vitamins such as calcium, heme iron,zinc, vitamin A, vitamin C, vitamin E, folic acid, niacin, thiamin should be provided more for children to ensure the children's growth and health.2. The nutrients fortified drinks obviously promoted the children's body weight, grip strength,. iron nutritional status and retinol level. |
PDF Full Text Request