Zinc is a mineral found naturally in certain foods and is essential to the cellular health of the human body. Its effects range from being a key factor in growth, to being a required ingredient for a healthy immune system. One particular role that zinc plays is its protection and maintenance of the lining of blood vessels.
Research
In a research study conducted at the Kaunas University of Medicine, as reported in a 2003 issue of the "Journal of Trace Elements in Medicine and Biology," a group of lab animals were put under stress, and blood samples and endothelial cells were analyzed. During the stressful period, one group was given a zinc supplement, while another group was not. Concentrations of certain chemicals in the blood were analyzed, and cells that line the blood vessels were viewed under a high-powered microscope.
Results
The group of a lab animals that were given the zinc supplement showed a number of promising results as compared to the control group. By the end of the study it was clear that the group receiving zinc showed lower blood cholesterol levels and maintained the structure of the cells lining the vessels better than the group that did not receive zinc.
Research Conclusions
When this research is seen in the light of other research on zinc supplementation, it is clear that zinc plays an integral role in proper cellular function. In the case of the cells lining the walls of the blood vessels, their maintenance is crucial in blood cholesterol reduction, according to an article in the 2001 issue of "Nutrition Science News." This maintenance serves to prevent the buildup of plaque, which can lead to heart disease.
Where to Find Zinc
Zinc occurs naturally in beef, poultry, seafood, the bean family, whole grain cereals and diary products. Although these foods are some of the best places to find naturally occurring zinc, nearly half of the U.S. population does not receive the recommended daily intake. Nutrition writer Marilyn Sterling, R.D., M.P.H., suggests, in "Nutrition Science News," that zinc supplementation is a good way to restore daily zinc intake to the recommended level. This will protect the body from conditions associated with a lack of dietary zinc.
Conclusion
Zinc plays a role in the protection of blood vessels, through maintaining proper cell structure and appropriate blood serum cholesterol levels. Since half of the American population does not receive the recommended daily intake of zinc, supplementation is a prudent choice. As with any dietary change or supplementation program is begun, consult your doctor before starting zinc supplementation.
