The Power of Zinc for Immune Health
Zinc is an essential mineral that plays a critical role in immune function, wound healing, protein synthesis, and cell division. Your body does not store zinc, so you need a consistent daily intake from food or supplements. Zinc is involved in the development and function of immune cells including neutrophils and natural killer cells. Even mild zinc deficiency can impair immune function and increase susceptibility to infection. Research on zinc lozenges for the common cold has shown that when taken within twenty-four hours of symptom onset, they can reduce the duration of colds by about one to two days. Zinc is also essential for skin health and wound healing. Oysters contain more zinc per serving than any other food. Red meat, poultry, beans, nuts, and whole grains are also good sources. Zinc supplementation can be beneficial for those with low dietary intake, certain health conditions, or during periods of increased need. However excessive zinc intake can cause copper deficiency and impair immune function, so moderation is key.
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