Zinc tablets – how they work, benefits, and how to choose the best sup

Introduction

Zinc is an essential trace element that is indispensable for numerous bodily functions. Since modern diets often do not provide enough zinc, many people turn to Zinc tablets as a dietary supplement. But what are their benefits, which form of zinc is most bioavailable, and how can you choose the right supplement? In this article, you'll learn everything you need to know about zinc tablets, how they work, and the best way to take them.

Why are zinc tablets useful?

Although zinc is found in many foods, it is not always easy to meet daily requirements through diet alone. Factors such as an unbalanced diet, intense physical activity, stress, or certain illnesses can increase zinc requirements. Zinc tablets offer a simple and effective way to make up for deficiencies.

What are the benefits of zinc tablets?

Strengthening the immune system – Studies show that adequate zinc intake strengthens the immune system and can shorten colds (Hemilä & Chalker, 2015).
Promoting healthy skin and hair – Research shows that zinc can reduce acne symptoms (Dreno et al., 2018).
Hormonal balance support – Zinc is important for testosterone production and fertility (Prasad et al., 1996).
Improved cognitive function – Zinc plays a role in concentration and memory (Frederickson et al., 2005).
Wound healing and cell regeneration – It promotes tissue renewal and speeds up healing processes (Mocchegiani et al., 2013).

What forms of zinc are available in tablets?

Not all zinc supplements are the same! Bioavailability (that is, the body's ability to absorb zinc) varies depending on the compound:

Zinc citrate – Highly bioavailable and easy to tolerate.
Zinc picolinate – Considered one of the most absorbable forms.
Zinc gluconate – Often used in cold remedies.
Zinc sulfate – Often used in medications, but less well tolerated.
Zinc oxide – Low bioavailability, more suitable for external use.

When and how should you take zinc tablets?

The timing of intake significantly affects zinc absorption. Here are some tried-and-tested tips: ✅ On an empty stomach – Zinc is best absorbed on an empty stomach, ideally 30–60 minutes before a meal. ✅ Not with coffee or milk – Calcium, coffee, and fiber can inhibit zinc absorption (Lönnerdal, 2000). ✅ In the evening or in the morning? – While some recommend taking zinc at night (for better recovery), others prefer taking it in the morning to support metabolism.

What should the dosage be?

The recommended daily dose varies depending on age and life circumstances:

Adults: 8–11 mg per day
Pregnant and breastfeeding women: 11–13 mg per day
Athletes and people with high requirements: up to 25 mg per day Long-term overdosing (> 40 mg daily) can lead to stomach problems or copper deficiency (Institute of Medicine, 2001).

What side effects may occur?

Zinc is safe as long as the recommended dosage is followed. Possible side effects of an overdose include:

Stomach problems, nausea
Loss of appetite
Copper deficiency with prolonged high intake (Sandstead, 1995)

How do you choose the best zinc supplement?

When buying zinc tablets, look for the following criteria: ✔ Form of zinc – Citrate and picolinate have particularly high bioavailability. ✔ Additives – Avoid unnecessary fillers, colorants, or artificial flavors. ✔ Dosage – Choose an amount that meets your daily needs. ✔ Certifications – Products with GMP or ISO certification guarantee high quality.

Where can you buy zinc tablets?

For high-quality Zinc tablets we recommend reputable suppliers:

In Germany and the EU: MST Nutrition offers a wide range of high-quality zinc supplements. More information at: MST Nutrition zinc products
In the UK: MST Nutrition UK also offers zinc supplements. More information at: MST Nutrition UK

Conclusion

Zinc tablets are a practical way to ensure an adequate supply of this essential trace element. Key points: ✔ They strengthen the immune system, promote healthy skin and hair, and support hormonal balance. ✔ Choosing the right form (e.g., citrate or picolinate) is crucial for absorption. ✔ Ideally, take them on an empty stomach, not with coffee or milk. ✔ The right dosage prevents side effects and ensures maximum benefit.

If you do not get enough zinc through your diet, well-chosen zinc tablets are a sensible addition to support your health.

Sources

Hemilä, H., & Chalker, E. (2015). The effectiveness of zinc for the treatment of the common cold: A systematic review and meta-analysis. Open Forum Infectious Diseases.
Dreno, B. et al. (2018). Low zinc levels in acne patients: A systematic review and meta-analysis. Journal of the European Academy of Dermatology and Venereology.
Chausmer, A. B. (1998). Zinc, insulin, and diabetes. Journal of the American College of Nutrition.
Prasad, A. S. et al. (1996). Zinc status and serum testosterone levels. Nutrition.
Sandström, B. (2001). Bioavailability of zinc. European Journal of Clinical Nutrition.
Lönnerdal, B. (2000). Dietary factors influencing zinc absorption. The Journal of Nutrition.
Maares, M., & Haase, H. (2020). A guide to human zinc absorption: General overview and recent advances of in vitro intestinal models. Nutrients.
King, J. C. (2011). Zinc: An essential but elusive nutrient. The American Journal of Clinical Nutrition.
Mocchegiani, E. et al. (2013). Zinc, immunity, and aging. Mechanisms of Ageing and Development.
Frederickson, C. J., et al. (2005). Neurobiology of Zinc and its role in neurodegeneration. Journal of Nutrition.