Objective To examine the effect of a nutrition powder on human immune functions.
Methods A total of 103 subjects (51 males and 52 females) were randomly divided into a control group and a nutrition powder group by double-blind method. A nutrition powder and a placebo similar to the nutrient powder in appearance were given to the corresponding groups for 30 days without changing their eating habits. The subjects' clinical symptoms/signs, as well as alterations in immune indicators were observed to evaluate if the nutrition powder could enhance immune functions.
Results The levels of IgA, IgG, and CD4/CD8 in the nutrition powder group were obviously higher than those in the control group (P<0.05). The levels of IgA, IgG, CD3, CD4, and CD4/CD8 in the nutrition powder group were also significantly elevated after receiving the nutrient powder (P<0.05), but all within the normal reference range. Moreover, in the nutrition powder group, the report of fatigue and mental state were improved (P<0.01), and the incidence of seasonal flu was lowered (P<0.01).
Conclusion The nutrition powder could enhance human immune functions.
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