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Zinc is an essential trace element that supports numerous functions in the body and contributes to the maintenance of healthy skin, hair and nails. It is used in many ways in dietary supplements and care products.

Zinc – The versatile all-rounder

Zinc is an essential trace element that is indispensable for the human body, industry and many other sectors. Whether in nutrition, medicine or the construction industry – zinc has a place in a wide variety of applications. In this article, you will learn everything you need to know about the properties, benefits and uses of zinc.

What is zinc?

Zinc is a chemical element with the symbol Zn and atomic number 30. It belongs to the transition metals and has been used for centuries. Zinc is best known for its corrosion resistance and its versatility in processing. In nature, zinc is often found in combination with other metals and is extracted industrially from ore.

The importance of zinc for the human body

Zinc performs numerous vital functions in the body. It supports the immune system, promotes wound healing and is involved in cell division. Furthermore, zinc has an antioxidant effect that protects the body from free radicals. A zinc deficiency can lead to symptoms such as hair loss, a weakened immune system or growth disorders.

Immune system: Zinc strengthens the body’s defences and helps to fight off infections.
Skin and hair: Zinc is important for healthy skin and strong hair.
Hormonal balance: Zinc plays a role in regulating hormones, particularly insulin and testosterone.

Zinc in food

Zinc is found in many foods, in both plant-based and animal-based sources. The following are particularly rich in zinc:

Red meat (e.g. beef)
Seafood (e.g. oysters)
Dairy products
Nuts and seeds (e.g. pumpkin seeds)
Wholemeal products

The recommended daily intake of zinc depends on age, gender and individual needs. For adults, the guideline is around 7 to 10 milligrams per day.

Industrial applications of zinc

As well as being important for health, zinc is also indispensable in industry. It is used in numerous sectors, such as the construction industry, the electrical industry and in the manufacture of batteries.

Zinc in the construction industry

One of the best-known uses of zinc is corrosion protection. Galvanised steel is used wherever materials need to be protected against rust, for example in roofs, façades or bridges. The process known as hot-dip galvanising creates a durable protective layer that makes the metal resistant to corrosion.

The role of zinc in the electrical industry

In the electrical industry, zinc is an important raw material, particularly in the manufacture of batteries. Zinc-air batteries and alkaline-manganese batteries utilise the metal’s special properties to store and release energy efficiently. Zinc is also used in alloys that are incorporated into electronic components.

Other applications of zinc

Zinc is also used in the manufacture of paints, plastics and cosmetic products. In sun creams, zinc oxide protects the skin from harmful UV radiation. Furthermore, zinc plays a role in agriculture, where it is used as a fertiliser to promote plant growth.

Sustainability and recycling of zinc

Zinc is a sustainably usable raw material that is highly recyclable. Thanks to modern recycling processes, zinc can be recovered from scrap metal and waste, thereby reducing the environmental impact. The use of recycled zinc is also more energy-efficient than extracting it from ore.

Conclusion: The Versatility of Zinc

Zinc is an indispensable raw material with numerous applications. Whether as an essential trace element for health or as a versatile material in industry, zinc stands out thanks to its unique properties. With the right use and a focus on sustainability, zinc will remain an important part of our lives in the future.

Frequently Asked Questions

What is zinc and why is it important?

Zinc is an essential trace element that is important for many bodily functions. It supports the immune system, wound healing and contributes to cell division. Since the body cannot produce it itself, zinc must be obtained through food.

Which foods contain zinc?

Zinc is found in a variety of foods such as meat, fish and seafood. Plant-based sources such as nuts, seeds and whole-grain products also provide zinc, although in smaller amounts. A balanced diet can help ensure sufficient zinc intake.

How much zinc does the body need each day?

The recommended daily intake of zinc varies according to age, gender and stage of life. Adults need an average of 7 to 15 milligrams of zinc per day. It is important not to exceed these values, as an overdose can have side effects.

Which symptoms can indicate a zinc deficiency?

A zinc deficiency can manifest through symptoms such as hair loss, impaired wound healing or weakened immune defenses. If a deficiency is suspected, a doctor should be consulted to clarify the cause and take appropriate measures.

Can an overdose of zinc be harmful?

Excessive intake of zinc can lead to symptoms such as nausea, diarrhea or headaches. In the long term, it can impair the absorption of other minerals such as copper. It is recommended to keep an eye on daily zinc intake.

Does zinc have positive effects on skin and hair?

Zinc is often associated with skin and hair health because it contributes to cell regeneration. It can provide support for acute skin irritations or oily skin. However, targeted supplementation should only be used when needed.