My husband was given a list of things to avoid following transplant, and Vitamin C was high on the list. Why do people take C when they feel a cold starting? Duh...because one tablet has many more times the C than any citrus fruits...plural.

Again, we've learned that simply avoiding the chemicals and excess salt of packaged/prepared foods is able to prevent catching colds and flus, even when exposed, even when the person is taking immunosuppresants to avoid rejecting an organ.