5. Chicken soup
Grandma was right to load you up with her own special brew: Researchers are finding that soup works to ward off viruses. One theory is that hot soup raises the temperature in the nose and throat, which creates an unwelcoming environment for viruses that thrive in cool and dry places.
Rade points to research that found that the chicken itself has flu-fighting properties. “Homemade chicken soup has protein groups that have been shown to have anti-viral activity,” says Rade. However, he emphasizes that the soup has to be homemade to ward off viruses. “Stuff out of a can isn’t going to have the same therapeutic value,” he adds.