Objective To investigate a nutritional improvement effect of functional food on patients with malignant tumors. Methods A total of 248 patients with tumor admitted to 10 hospitals from April to October 2019 were selected and were divided into the control group (154 patients) and the functional group (94 patients). They all received radiotherapy or chemotherapy. Tumor patients in the functional group taking 30g of functional nutrition powder in the morning and evening were divided into four groups according to different durations： 9 in group A (15-30d), 25 in group B (31-60d), 44 in group C (61-90d), 16 in Group D (≥90d). The other 154 patients received radiotherapy or chemotherapy as the control group not taking functional food. During the experiment, relevant clinical indicators of patients were collected to evaluate the safety and patient compliance of functional food, and the physical strength, overall quality of life score, appetite score, white blood cell count, body weight, serum albumin level and other nutritional status indicators of each group before and after treatment were recorded and analyzed. Results Compared with the control group, the patients who took functional food had better nutrition indicators such as white blood cell weight and albumin, as well as physical life quality and appetite. After taking functional food for 1month, most of the tumor patients could maintain the normal levels of white blood cells and albumin. The average weight of the nutrition group was maintained at the pre-chemoradiotherapy level and higher than that of the control group (no statistical significance). The effect of the nutrition powder on the physical strength and overall quality of life of patients with gastrointestinal tumors was more significant. Conclusion The functional food can significantly improve the nutritional status of malignant tumor patients, good safety, can be used as an adjuvant anti-tumor therapy.
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