Zinc Sulfate (Monohydrate)
Food-grade, water-soluble zinc salt for mineral fortification in foods and beverages.
Zinc Sulfate (Monohydrate) Food food-grade, water-soluble zinc salt used as a mineral fortifier in foods and beverages; provides bioavailable zinc supporting immune function, growth, and skin health.
| Benefit | Typical study dose* | Key human findings | High-quality sources |
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| Immune support | 10–15 mg elemental Zn/day for 3–6 months | Improved immune markers; reduced infection duration | NIH ODS |
| Growth & development | 5–10 mg elemental Zn/day (children) | Supports height/weight gain in deficient populations | WHO guidance |
| Skin & wound healing | ~15 mg elemental Zn/day | Improved epithelial repair in deficiency | Review |
*Doses are expressed as elemental zinc. Fortification levels depend on matrix and regulatory limits.
Mechanistic highlights
- Cofactor for >300 enzymes: central to DNA/RNA synthesis and cell division.
- Immune modulation: supports barrier function and cytokine balance.
- Antioxidant defense: involved in superoxide dismutase activity.
Safety & practical use
- Usual supplemental range: Adults 8–11 mg/day (RDA); upper limit 40 mg/day (tolerable UL varies by age).
- Interactions: High iron/calcium may reduce zinc absorption; separate dosing.
- Fortification applications: Beverage premixes, dairy, cereals, nutrition bars; dissolve in water or premix with glycols.
- Allergens: None of the Big 7 (milk, egg, fish, peanut, wheat, soy, gluten).
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