Zinc is a metal that your body needs in very small amounts for proper health. Zinc has a role in preventing diarrhea in children and helping conditions such as macular degeneration, skin problems and attention deficit disorder. Some evidence also suggests that zinc can prevent common infections. Talk to your doctor to learn more about how zinc may help to prevent recurrent infections and ailments such as the flu and common cold.
Background
Zinc is an essential trace element that you need to get from dietary sources. Zinc is found in every cell of your body and has roles in growth, reproduction, sense of smell, and blood clotting. Deficiencies of zinc are very rare, but can occur in children, the elderly and alcoholics. In cases of zinc deficiency, zinc supplements can help to reduce the severity of respiratory infections, diarrhea and symptoms of malaria.
Immune Function
According to the University of Maryland Medical Center, zinc is needed for a healthy immune system, and people with zinc deficiencies may be at a great risk for infections. People with zinc deficiency are commonly told to take zinc supplements to prevent infections, however, whether or not people with healthy zinc levels can prevent infections or sickness with zinc is controversial.
Mechanism
Doctors and scientists do not fully understand how exactly zinc can help to prevent and fight infections. One study published in the "Journal of Leukocyte Biology" suggests that zinc can boost the activity of immune cells in your body known as T cells. These active immune cells play a part in helping your body to fight off invading viruses and bacteria.
Recommendations
Talk to your physician to learn more about how zinc supplements and zinc lozenges may help you to fight off infections and the common flu and cold. If you are at risk for zinc deficiency, also talk to your doctor about how to best use zinc supplements to help your condition and prevent infection.
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