Zinc and selenium are trace elements. Most trace elements are essential, and are therefore indispensable for maintaining life. Just like vitamins and other cellular nutrients, they must be supplied to our bodies regularly with food. Trace elements are classified under the category of minerals. They only occur in small amounts (traces) in our bodies, but their infrequent occurrence should not obscure their importance for health. Trace elements are involved in many metabolic processes. Optimum daily supply of essential trace elements has a positive effect on our health and well-being. Zinc and selenium, for example, help protect the cells against oxidative stress, and promote the normal function of the immune system.
