Zinc

Zn 🟢 Strong

A trace mineral essential for immunity, wound healing, and enzyme function.

⚠ Copper (long-term)See cautions below; consult your physician for specifics.

Reviewed by Dr. Sungwoong Jung · Last reviewed Jul 16, 2026

Key benefits

Supports immune-cell function

Wound healing, mucosa, taste

Protein/DNA synthesis (zinc fingers)

How it works

Evidence

🟢 StrongCorrects deficiency; may shorten colds

🟡 Moderate / mixedGeneral prevention varies

The same nutrient can differ for "correcting deficiency" vs "general prevention."

Suggested use

Absorbs well fasting; take with food if it upsets stomach.

A general suggestion, not a prescription.

Cautions & interactions

Long-term high doses cause copper deficiency; interacts with some antibiotics.

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Korea vs USA

🇰🇷 Korea

MFDS · immune category

🇺🇸 USA

Lozenges, picolinate forms

References

NIH ODS — Zinc ↗

Grades/refs re-verified at each update (draft).

Vitamin C Vitamin C An essential water-soluble vitamin for antioxidant defense, collagen synthesis, and iron uptake. 🟢 Strong Foundational Iron Iron Essential for oxygen transport in red cells; especially important for menstruating and pregnant women. 🟢 Strong Blood Propolis Propolis A bee-derived material rich in antioxidant and antimicrobial compounds. 🟡 Moderate Immune

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🇰🇷 Buy in Korea 🇺🇸 Buy in USA

Disclaimer — This content is for general information and suggestion only and does not replace medical diagnosis or treatment. Consult a doctor or pharmacist if you have a condition or take medication.