HEALTH TOPICS 
What you should know about: Vitamin C
You may hear each winter that vitamin C can fight off the common cold. But is it just hype, or does it really help?
"The findings of a large number of studies on the subject are mixed," says Dr. Bruce Bistrian, chief of clinical nutrition at Beth Israel Deaconess Medical Center and professor of medicine at Harvard Medical School.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise