一位朋友告诉我,她正在服用某著名品牌的蛋白粉和维生素C片,并且感觉好极了:身体比以前结实了走路也不觉得累,精力更旺盛了,夜里也不觉得困乏;抵抗力增加,很少再感冒了:皮肤也比以前好多了。作为从事营养保健工作的专业人员,我知道这些好处与服用的营养补品并没有太大的关系,很可能是心理作用。面对铺天盖地的营养补品广告宣传和诸如上述朋友的现身说法,事实真相到底如何呢? A friend told me that she is taking protein powder and vitamin C tablets from a famous brand and feels good: the body is not tired, energetic and sleepy than before, nor is it sleepy at night; resistance Increase, rarely catch a cold: the skin is much better than before. As a professional working in the field of nutrition and health care, I know these benefits do not have much to do with nutritional supplements, which are likely to be psychological effects. In the face of overwhelming nutritional supplements advertising and appearances such as the above-mentioned friends, the truth in the end how?