Abstract: Objective: To observe the enhancing effect of eating General Nutritional Supplement (GNS, a complete nutritional formulated cereal-based food) for one month on the physical condition, nutritional status, immune function and physical fitness of human subjects. Methods: A total of 80 volunteers were randomly divided into of 2 groups of 40 ones each: GNS group (taking GNS after mixing it with boiling water at breakfast every day for 1 month, 30 g per person at a time ) and control group (taking placebo instead of GNS in the same way). Before and after the eating period of 1 month, all the subjects were asked to receive physical measurement, the determination of serum minerals, vitamin nutrition status and immune function, and physical fitness tests. Results: Body fat was reduced, muscle tissue, the contents of calcium, zinc and selenium in the blood and the nutritional status of vitamins B1, B2 and C were increased, and humoral and cellular immune functions and physical fitness were enhanced in GNS group when compared to the control group. Conclusion: Eating GNS for 1 month can enhance the physical condition, nutritional status and immune function and physical fitness of human.

Key words: general nutritional supplement, physical condition nutritional status, immune function, physical fitness, evaluation