Zinc is one of the most commonly depleted minerals and one of the least talked about.
It's essential for testosterone production, immune function, wound healing, protein synthesis, and over 300 enzymatic reactions in your body.
What depletes it fastest:
- Chronic stress
- Alcohol consumption
- High-grain diets that contain phytic acid which binds zinc and blocks absorption
- Prolonged endurance training
Best food sources:
- Oysters, by far the richest source available
- Grass-fed red meat
- Pumpkin seeds
- Shellfish
Zinc supplementation improved insulin resistance, inflammation, and oxidative stress in people with diabetes or prediabetes, even though it didn't clearly lower blood glucose.
This fits with the biology of zinc. Inside the pancreas, it helps insulin molecules assemble into compact structures so they can be safely stored and released when blood glucose rises. Zinc also supports insulin signaling and antioxidant defenses, both of which can become disrupted in diabetes.
This doesn’t mean everyone should supplement. Any benefit may depend heavily on whether someone is getting enough zinc in the first place, while excessive zinc intake carries risks of its own (like interfering with copper absorption).
Korea Zinc shareholders will vote on Wednesday to fill five board seats, a contest that could tilt the balance in a bitter two-year battle for control that has pitted Chairman Yun B. Choi against the company’s largest investor