Influenza and the common cold are viral infections that affect the upper respiratory tract. The flu is caused by the influenza virus, while the common cold can be caused by any of 100 different viruses. Both illnesses can cause symptoms such as congestion, cough and runny nose. Influenza may also cause fever, chills and sweating. Although there is no cure for these viral infections, certain foods may help relieve symptoms and speed recovery.
Consult your doctor before altering your diet to treat cold or flu symptoms.
Warm Liquids
Warm liquids may help ease congestion and respiratory distress associated with colds and influenza, the University of Maryland Medical Center recommends. Warm liquids may also loosen mucus, promoting the removal of viral cells from your body. Hot broths, soups and decaffeinated teas are effective choices for relieving cold and flu symptoms.
Cayenne Pepper
Fresh or ground cayenne pepper may help ease the symptoms of influenza and the common cold, according to Dr. James Balch and Phyllis Balch, authors of "Prescription for Nutritional Healing." Capsaicin, the chemical compound that makes peppers hot, may help improve circulation, delivering nutrients and vitamins to infected cells. The heat from capsaicin may also help relieve congestion in your chest and nasal cavities.
Ginger
Ginger contains antiviral compounds that may help destroy influenza and cold-causing viruses, according to Michael Castleman, author of "The Healing Herbs." This food may also help boost your immune system, supporting the production of natural antibacterial and antiviral compounds.
Zinc-Rich Foods
Foods rich in zinc may help boost your immune system and reduce the symptoms of colds and influenza, according to the University of Maryland Medical Center. Zinc, beans, chickpeas, seafood, red meats, eggs and soybeans are abundant sources of zinc, according to Dr. James and Phyllis Balch.
Garlic
Garlic contains chemical compounds that offer powerful antibiotic and antiviral properties, according to Castleman. These compounds may improve your body's ability to destroy cold and flu viruses . Garlic may also improve circulation, helping your circulatory system deliver vital nutrients, oxygen and hydration to your body's cells.
References
- University of Maryland Medical Center: Influenza
- University of Maryland Medical Center: Common Cold
- "Prescription for Nutritional Healing;" James F. Balch, M.D. and Phyllis A. Balch, C.N.C.; 1997
- "The Healing Herbs;" Michael Castleman; 1991


