As winter increases vulnerability to respiratory infections, medical experts are highlighting zinc as a critical "gatekeeper" for the immune system. While Vitamin C is a popular go-to, zinc plays a unique role in identifying and destroying viruses, potentially shortening the duration and severity of seasonal illnesses.
Zinc activates T cells and Natural Killer cells, which are essential for targeting virus-infected cells. It specifically interferes with the replication of rhinoviruses, the primary cause of the common cold.
It helps maintain the mucosal linings in the nose and throat. These serve as the body's first line of defense, which is especially important when dry winter air makes these tissues more susceptible to germs.
Zinc regulates inflammatory cytokines, ensuring the body’s immune response is effective without causing "immune burnout" or chronic inflammation that can worsen symptoms.
The mineral is vital for cell growth and tissue repair, helping the body regenerate immune cells and fix damage caused by viral attacks.
Dr. Shah notes that vegetarians, older adults, and those with frequent infections are at higher risk of deficiency. To boost intake, focus on pumpkin seeds, nuts, legumes, seafood, and lean meats.
Always consult a healthcare professional before starting new supplements, as excessive zinc intake can have adverse effects.
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