Each year, the Centers for Disease Control and Prevention launch a major initiative to help fight seasonal flu symptoms. Along with this formal campaign to fight off the flu, individuals can also take steps to protect against flu symptoms. For some people, this means starting a regimen of vitamin and mineral supplements to boost their immune systems. Zinc is one popular choice as a seasonal supplement, but understanding its effectiveness and relationship with the flu can help dictate if it is the right choice for you.
Historical Popularity
Zinc has been popular as an ingredient in a number of supplements and over-the-counter cold and flu medications due to a long-standing reputation as a health-preserving supplement. It is a recommended supplement for the chronically ill, according to the Linus Pauling Institute.
The Facts
According to the Centers for Disease Control and Prevention, the flu is an infectious, contagious illness caused by viruses. Zinc is a trace element that plays a regulatory role in gene expression and cellular signaling, according to the Linus Pauling Institute, and deficiency has been linked to increased susceptibility to infectious disease. Maintaining zinc intake levels of 11 mg/day for men and 8 mg/day for women may therefore help the body reduce susceptibility to infectious and contagious diseases like the flu.
Types of Treatments
Zinc can be administered as a treatment for the flu in a number of forms. The most common form is as a part of an over-the-counter lozenge or cough suppressant, notes the Office of Dietary Supplements. It can also be used as a nasal gel and more rarely is used in a colloidal form.
Effects
The effects of zinc as a treatment for the flu vary from person to person, and the Office of Dietary Supplements notes that more research is needed to accurately link specific amounts of zinc with specific health outcomes related to the flu. Long-term consumption of high levels of zinc (greater than 60 mg/day) has been linked to copper deficiency, and short-term effects of elevated doses can include nausea, vomiting and diarrhea, according to the Linus Pauling Institute.
Considerations
The Office of Dietary Supplements notes that people with gastrointestinal impairment, vegetarians, pregnant women, alcoholics and people with sickle cell anemia are likely to be deficient in zinc. The boost from zinc to the immune system may vary from person to person, but depending on your overall health, the Linus Pauling Institute notes that it may help fight chronic illnesses, such as the flu.
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