Nickel is a trace element that plays an undeniable role in the human body, despite being required in extremely small amounts.
As a component of various enzymes, nickel aids in the normal course of many biochemical processes.
Nickel participates in metabolic processes, affects hormonal balance, and is necessary for the synthesis of certain enzymes.
However, like any other substance, nickel can be both beneficial and harmful depending on its concentration in the body.
Sources in the Daily Diet
Nickel is a trace element that is present in small amounts in many foods.
It is found in grains, vegetables, fruits, nuts, and chocolate.
Especially high levels of nickel are noted in legumes such as beans and peas, as well as in sunflower seeds and flaxseeds.
Additionally, nickel can leach into food from stainless steel cookware during cooking.
It is important to note that consuming foods high in nickel can be problematic for individuals allergic to this metal. In such cases, it is advisable to carefully select foods low in nickel and limit contact with metal objects.
Daily Requirement and Intake Norms
The daily requirement for nickel for an adult is approximately 25-35 micrograms.
It is important to monitor nickel intake levels, as both deficiency and excess can lead to serious health issues.
Sources of nickel available on a keto diet:
- Nuts and seeds
- Chocolate
- Some types of fish
Deficiency Symptoms and Health Consequences
Nickel deficiency is rare and is generally associated with a diet low in this element.
Deficiency symptoms may include impaired growth, liver dysfunction, changes in blood composition, and impaired iron absorption. In severe cases, reduced fertility and developmental issues in offspring in animals may be observed; however, data on similar effects in humans are limited.
Since nickel is present in many food items, deficiency of this element in humans occurs extremely rarely.
Excess Risks, Toxicity, and Prevention
Excess nickel in the body may be associated with various diseases and undesirable symptoms. Prolonged exposure to high levels of nickel can contribute to the development of dermatitis, asthma, chronic lung diseases, and negatively affect the kidneys and liver.
To prevent nickel toxicity, it is essential to monitor the intake of nickel-rich foods and avoid excessive contact with nickel in the workplace. Using protective equipment and adhering to safety standards can significantly reduce the risk of nickel excess in the body.
Interesting Facts About Nickel
Discovered in 1751. It was discovered by Swedish mineralogist Axel Cronstedt, who initially failed to obtain pure nickel as it was combined with copper and arsenic in the mineral niccolite.
Named after the German word “kupfernickel.” This word translates to “devil’s copper,” as miners believed that niccolite deceived them by resembling copper.
Main component of stainless steel. It is added to steel to enhance its strength, corrosion resistance, and improve mechanical properties.
Exhibits strong anti-corrosive properties. This makes it ideal for use in the marine and chemical industries, where high corrosion resistance is required.
Magnetic metal. It retains its magnetic properties even at high temperatures, making it useful in various electrical and magnetic applications.
Largest reserves are found in Russia and Canada. These countries are leaders in nickel mining and the production of its alloys.
Used in coin production. Many countries, including the USA and Canada, use nickel in their coins due to its strength and corrosion resistance.
Allergic reactions. Some people develop contact dermatitis upon contact with items containing nickel, such as jewelry and watches.
Can be recycled an infinite number of times. This makes it one of the most environmentally friendly metals, as it can be reused without loss of quality.
Exists in several isotopes. The most common isotopes are nickel-58, nickel-60, nickel-61, and nickel-62, each with its own characteristics and applications.
Melting temperature. It melts at around 1455°C, making it suitable for use in high-temperature applications.
Involved in mineral formation. For example, it is found in minerals such as pentlandite and niccolite, which are primary sources of nickel.