This is an important mineral that is essential for proper metabolism in the body. However, at higher doses is toxic; overconsumption can result in death.
Zinc interacts with copper, so that taking too much copper can result in a functional zinc deficiency, and taking too much zinc can result in a functional coper deficiency.
Note that in Arizona, copper is relatively plentiful in the soil and water, so zinc deficiency is more likely than copper deficiency in Arizona. But the best plan is to "test, don't guess."
In order to optimize your zinc (and copper) balance in the body, consult with a health care provider, such as Dr. Weyrich, who is trained in biochemistry and nutrition.