Two Essential Minerals Not Just for Athletes: Magnesium and Zinc
Magnesium and zinc are among the basic building blocks for the proper functioning of the body. They are important not only for athletes but for anyone who wants to take care of their vitality, immunity, and mental well-being. In this article, you will learn why magnesium and zinc are so important, where to find them in a regular diet, what forms of supplements to choose, and what their recommended daily intake is based on age.
7 min
Magnesium
This mineral plays an important role during various chemical reactions in the body and regulates over three hundred different enzymes.
- contributes to reducing fatigue and exhaustion
- contributes to electrolyte balance
- contributes to normal energy metabolism
- contributes to the normal functioning of the nervous system
- contributes to normal muscle function
- contributes to the maintenance of normal bones and teeth
- contributes to normal protein synthesis
In which foods can you find magnesium naturally
There is a wide range of foods that naturally contain magnesium. Sweet lovers will certainly be pleased to know that magnesium can be found in quality dark chocolate, which not only satisfies our taste buds but also contains beneficial antioxidants. Another nutrient-rich food where we find magnesium is avocado and various types of nuts such as almonds, cashews, Brazil nuts, or certain types of seeds. Legumes and cereals are also very rich in many different nutrients, including magnesium. The most popular fruit in the world is bananas, which excel, compared to other fruits, in potassium and magnesium content.
Recommended daily intake of magnesium
The reference intake value for an adult ranges from 300 to 400 milligrams per day. If our diet is varied and balanced, we can certainly absorb a large part directly from food; however, this is often a problem, and people tend to reach for dietary supplements.
| Age | Men | Women |
|---|---|---|
| Infants | ||
| 0-3 months | 24 mg | 24 mg |
| 4-11 months | 60 mg | 60 mg |
| Children | ||
| 1-3 years | 80 mg | 80 mg |
| 4-6 years | 120 mg | 120 mg |
| 7-9 years | 170 mg | 170 mg |
| 10-12 years | 230 mg | 250 mg |
| 13-14 years | 310 mg | 310 mg |
| Teenagers and Adults | ||
| 15-18 years | 400 mg | 350 mg |
| 19-24 years | 400 mg | 310 mg |
| 25-50 years | 350 mg | 300 mg |
| 51-65 years | 350 mg | 300 mg |
| over 65 years | 350 mg | 300 mg |
| Pregnant women | 310 mg | |
| Breastfeeding women | 390 mg | |
| Source: Reference values for nutrient intake. Nutrition Society. 2011 |
What forms of magnesium exist
In each product, it is good to monitor in what form magnesium is contained. Generally, the more suitable forms, due to better absorption, are chelated and organic forms such as magnesium citrate. Lower absorption, and thus effectiveness, is found in inorganic forms such as magnesium oxide, magnesium carbonate, and magnesium sulfate.
When to take magnesium
Of course, the most beneficial way is to supplement magnesium naturally through diet, regularly throughout the day. If you know that this mineral is deficient in your diet, then it is possible to reach for dietary supplements, ideally in the evening before sleeping. It is useful to remember that magnesium works synergistically with vitamin B6.
Zinc
Zinc is most sought after for its positive effects on hair, nails, and skin. But did you know that zinc has far more beneficial effects for our body?
- contributes to normal carbohydrate metabolism
- contributes to normal cognitive function
- contributes to normal fertility and reproduction
- contributes to normal metabolism of macronutrients
- contributes to normal protein synthesis
- contributes to normal vitamin A metabolism
- contributes to the maintenance of normal bones
- contributes to the maintenance of normal hair, nails, and skin
- contributes to the maintenance of normal vision
- contributes to the normal function of the immune system
- contributes to the protection of cells from oxidative stress
- plays a role in the process of cell division
Zinc in foods
Zinc is found in a wide range of foods. You can obtain the recommended amount of zinc, for example, by consuming red meat, seafood (especially oysters), and just like magnesium, zinc can also be found naturally in legumes, nuts, or seeds.
Recommended daily intake of zinc
The reference intake value for an adult is around 10 milligrams per day.
| Age | Men | Women |
|---|---|---|
| Infants | ||
| 0-3 months | 1 mg | 1 mg |
| 4-11 months | 2 mg | 2 mg |
| Children | ||
| 1-3 years | 3 mg | 3 mg |
| 4-6 years | 5 mg | 5 mg |
| 7-9 years | 7 mg | 7 mg |
| 10-12 years | 9 mg | 7 mg |
| 13-14 years | 9.5 mg | 7 mg |
| Teenagers and Adults | ||
| 15-18 years | 10 mg | 7 mg |
| 19-24 years | 10 mg | 7 mg |
| 25-50 years | 10 mg | 7 mg |
| 51-65 years | 10 mg | 7 mg |
| over 65 years | 10 mg | 7 mg |
| Pregnant women | 10 mg | |
| Breastfeeding women | 11 mg | |
| Source: Reference values for nutrient intake. Nutrition Society. 2011 |
How to supplement zinc
Zinc is usually included in almost all multimineral dietary supplements. It is also available separately or in combination with magnesium, calcium, or other ingredients in dietary supplements. Dietary supplements can contain several different forms of zinc, including zinc gluconate, zinc sulfate, and zinc acetate.
Sources:
MINDELL Earl, 2010: The New Vitamin Bible: Vitamins, Minerals, Antioxidants
Reference values for nutrient intake. Nutrition Society. 2011