Zinc
Zinc is a nutritionally essential mineral required for over 300 enzymatic reactions. From DNA synthesis to wound healing, it is the cornerstone of cellular growth and immune defense.
Functions and Benefits
Recommended Dietary Allowance (RDA)
| Life Stage | Age Group | Men (mg/day) | Women (mg/day) |
|---|---|---|---|
| Infants | 0 – 12 months | 2 – 3 mg | 2 – 3 mg |
| Children | 1 – 8 years | 3 – 5 mg | 3 – 5 mg |
| Teens | 9 – 18 years | 8 – 11 mg | 8 – 9 mg |
| Adults | 19+ years | 11 mg | 8 mg |
| Maternal | Pregnancy / Nursing | – | 11 – 12 mg |
*Warning: Do not exceed the upper limit of 40mg/day for adults to avoid toxicity.
Top Food Sources (mg)
Seafood: Oysters (27-50mg), Crabs (4.7mg).
Meat: Beef (8.7mg), Turkey (3.0mg), Pork (2.7mg).
Plant-Based: Soybeans (2.2mg), Cashews (1.6mg), Sunflowers.
Dairy: Yogurt (1.5mg), Milk (1.1mg), Cheddar Cheese.
Deficiency & Overdose Risks
Weakened immunity, hair loss, loss of taste/smell, delayed wound healing, and growth retardation in children.
Excessive zinc (40mg+) interferes with Copper and Iron absorption, causing nausea, metallic taste, and a weakened immune system.
Specialized Health Benefits
Neurological Health: Zinc is involved in synaptic transmission; its deficiency is linked to cognitive decline and Alzheimer’s risk.
Diabetes Support: Essential for insulin metabolism, helping improve blood sugar control and reducing oxidative stress in diabetic patients.
Conclusion: Zinc is a powerful trace element that governs your senses and defense systems. Maintaining a balanced intake—primarily through animal proteins and nuts—is key to metabolic and reproductive health.