Nickel is a trace mineral and is present in many cells in the body. Small amounts of nickel are useful in certain bodily functions, for example, minute amounts of nickel are important in DNA and RNA stabilization. Nickel may play a role in the metabolism of glucose and hormonal functions. It also helps to activate certain important enzymes, such as trypsin and arginase. A nickel deficiency may affect iron and zinc metabolism, which is why it is included in Cardio-Klenz.
Foodstuffs naturally contain small amounts of nickel, such as bananas, barley, beans, buckwheat, cabbage, hazelnuts, legumes, lentils, oats, pears, soybeans, and walnuts.