health guides

Supplement eases severe cold symptoms

In this study, 529 healthcare workers (who are, by profession, particularly susceptible to colds) were randomly assigned to four capsules of a dietary supplement (Juice Plus+® juice powder concentrates from fruits and vegetables) or placebo, daily for eight months. The participants kept a diary of cold symptoms for six months following the intervention.

Results found that the average number of days with moderate or severe cold symptoms was 20% lower in the dietary supplement group compared with the placebo group, and people in the supplement group also reported fewer days of taking cold medicine. People in either group did not have fewer colds, and there was no difference in the total number of days with any cold symptoms between the two groups.

So while the quest for a cure for the common cold continues, the authors comment, “Given the widespread utilization of concentrated dietary products, the present study has potentially important public health relevance. To our knowledge, it is the first randomised investigation focusing on the benefits of juice powder concentrate in subjects particularly exposed to patient contact.” It should be noted that this study was funded by the makers of Juice Plus. Further research on this important topic is needed.

Tips for preventing a cold

• Get enough rest. Sleep is essential for our health and well-being and getting a good night's rest every night or almost every night is a good first step in helping to prevent infections, including colds.
• Live a balanced and healthy life. A nutritious diet including an abundance of fruits and vegetables is essential for keeping our immune system working properly and for our ability to fight off infection. Avoiding bad habits such as smoking and drinking too much is also important in efforts to remain healthy. Regular exercise is critical for keeping the body fine-tuned to ward off illness.
• Cover your mouth and wash your hands. Healthcare workers are particularly trained to wash their hands before and after contact with sick people, and the general public should wash their hands after using the restroom or interacting with people who are sick with a cold or the flu. When possible, steer clear of friends and colleagues who are in the first couple of days of having a cold, which is when they are most contagious, and if you are sick remember to cover your mouth when you cough or sneeze and wash your hands frequently.

(Br J Nutr 2011;105:118–22)