Your grandmother was right: Chicken soup may not be a cure-all, but it's a great choice when you're sick. Enjoying a bowl of chicken soup with vegetables, prepared from scratch or warmed from a can, can slow the movement of neutrophils in your body. Neutrophils are a common type of white blood cell. They help protect your body from infection. When they're moving slowly, they stay more concentrated in areas of your body that require the most healing. The study found that chicken soup was effective for reducing the symptoms of upper respiratory infections in particular. Low-sodium soup also carries great nutritional value and helps keep you hydrated. It's a good choice, no matter how you're feeling.