The best way to keep sniffles and worse at bay this winter? In addition to following a balanced diet, washing your hands regularly, and getting plenty of sleep, a slew of natural foods and supplements can also help boost your immune function. Try some of these research-proven fixers to keep you healthy throughout cold and flu season.
Elderberry, or elder, is a flavonoid-filled fruit used for centuries to treat colds and the flu. One study found that an extract of elderberry reduced the length of flu symptoms by nearly three days.