The elderly, the chronically ill, or patients in recovery are accustomed to drinking soup stewed with old hens, even believing that chicken soup is more nutritious than the chicken itself. In fact, the nutritional content of chicken soup is four times less than that of the chicken. According to research, individuals with hypercholesterolemia, high blood pressure, poor kidney function, excessive stomach acid, or biliary tract diseases should not drink too much chicken soup. If one blindly uses chicken soup as a tonic, it will only further aggravate the condition, which is harmful and not beneficial to the body. Therefore, the elderly should avoid drinking chicken soup frequently.