Take C or Not Take C, That Is the Question
Sound nutrition has long been the advice of the American Heart Association,
the American Cancer Society and other health organizations, particularly those
that promote a minimum of five servings of fruits and vegetables per day.
The ADA says research on the relationship between diet and disease has
indicated the importance of a variety of nutrients. The best nutritional
strategy for promoting optimal health and reducing the risk of chronic disease
is to obtain adequate nutrients from a wide variety of foods, according to the
ADA. Vitamin and mineral supplementation is appropriate when scientific
evidence shows safety and effectiveness, but good nutrition depends on a good
diet, the ADA says.
Different studies have shown that vitamin
C supplements lower blood pressure but can also cause hardening of the
In these studies, people took 500 mg of
vitamin C supplements per day, which is much greater than the recommended daily
Researchers do not know how vitamin C
causes these effects, but they advise people to continue to get vitamin C from
their diet, which is much healthier than taking a supplement.