- must try it!!!
Agree with Scarlett easy to have healthier diet for a few days and feel better - am sure reducing caffeine (and sugary stuff) helps too - very easy to get hooked on it!
However I have yet to see anything that really helps the immune system. Plenty of health food sellers / advisers will extract money from you to no great benefit.
My DC's never took vitamins / omega 3 etc etc unlike the majority of their class mates but were off sick from school far less - they also eat a fairly naff diet - you know the one green vegetable a month diet.
Only thing I have found that really works re avoiding getting really ill in the winter is plenty of exposure to bugs! Swine flu was interesting - must have seen loads of people with it but don't know any staff who caught it?? Presume some did!