Objective:To explore the impact of compound nutrients supplementation on nutritional and immune status in middle-aged and elderly people.Method:The volunteers aged 50-65 years old were randomized into two groups.The supplement was given to the test group,the control group took placebo.Results:In comparison with the control group,the test group had a higher level of serum vitamin A and zinc,blood selenium.The humoral immune indices as IgA、IgG、IgM、C3 of the test group were higher than those of the control group,but no significant difference of cellular immunity indices between two groups.Conclusion:Supplementation of compound nutrients could improve the nutritional status of vitamin A,zinc and selenium,and may promote humoral immunity.
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