2023-10-30 04:15:41
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An overdose of vitamin D can also be harmful to your health. Here you will find an overview of the most important facts regarding the well-known vitamin.
Kassel – Uncomfortable weather, home office, everyday stress: There are many reasons for not being in the sun enough. But in addition to the many benefits that fresh air has for our immune system, one important aspect is quickly forgotten: vitamin D. A deficiency can have serious consequences because vitamin D fulfills a variety of functions in the human body.
As the Robert Koch Institute (RKI) informs, the best-known task of the vitamin is its involvement in bone metabolism. But vitamin D is also involved in other metabolic processes and protein formation. “In recent years, this has led to the assumption that there are connections between vitamin D supply and chronic diseases and that new prevention options might be discovered at the same time,” explains the RKI. Still, it adds that studies have so far failed to uncover any direct causal relationships. Also has a preventative effect on infections is not reliably proven. Nevertheless: In some cases, a vitamin D deficiency shows up with serious symptoms. You can find an overview of everything you need to know here.
A vitamin D deficiency can manifest itself through various symptoms. (Symbolic photo) © Westend61/Imago
Lack of vitamin D: What warning signs should you pay attention to?
Too little vitamin D in the body is harmful to health. Like that MSD Manual explainedthe following general symptoms are possible signs of undersupply:
Fatigue and feeling weakMuscle painPain in the bonesWeakness in the bones; Sensitivity to touch is possible, particularly in the spine, pelvis and legs
Depending on the age of the person affected, other symptoms may indicate a vitamin D deficiency. Infants can develop rickets and severe cramps. Children between one and four years old can suffer from bone adhesions, older children and teenagers usually develop pain when walking MSD Manual. In older people, minor shocks can cause breaks and fractures if there is a severe vitamin D deficiency.
Recognizing vitamin D deficiency: How it is diagnosed – and how much the body needs
How much vitamin D does the human body actually need? According to the RKI, the amount of vitamin D is determined by measuring 25-hydroxyvitamin D (25(OH)D) in the blood serum. In the blood apply loudly RKI following limit values:
Vitamin D deficiency<30Suboptimale Versorgung30 bis <50Ausreichende Versorgung in Bezug auf die Knochengesundheit50 bis <75tAusreichende Versorgung in Bezug auf die Knochengesundheit ohne weiteren Zusatznutzen für die Gesundheit75 bis <125Mögliche Überversorgung, die für den Körper negative gesundheitliche Folgen≥125Quelle: RKI
As can be seen from the table, an oversupply of vitamin D can also be harmful to health. According to the institute, hypercalcemia is possible. This occurs when the calcium level in the blood is significantly too high. According to the RKI, this can lead to cardiac arrhythmias or kidney stones.
Too little vitamin D: The risk is particularly high for these people
Who is at risk of having too little vitamin D in their blood? According to the German Nutrition Society (DGE) People who spend little or no time outdoors when the sun is shining, or only with their bodies completely covered, or people with dark skin are at particularly high risk. As a specification, the society writes that the people who do not get enough sun are primarily those with limited mobility, those with chronic illnesses and older people in need of care. With age, the skin’s ability to produce vitamin D independently also decreases.
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Vitamin D deficiency? What can be done regarding it
Die DGE emphasizes on its website that a maximum of 20 micrograms of vitamin D should only be consumed daily if the body does not produce its own. In babies under twelve months of age the value is 10 micrograms. “The estimated value is achieved by administering a vitamin D tablet to prevent rickets from the 1st week of life until the end of the 1st year of life in breastfed and non-breastfed infants,” says the DGE.
Editor’s note
The information provided in this article does not replace seeing a doctor. Only professionals can make the correct diagnosis and initiate appropriate therapy. The use of medication or nutritional supplements should be discussed with a doctor beforehand.
If you suspect that you may have a deficiency, contact your doctor. The DGE emphasizes: “Since a large part of the healthy German population is not expected to have a vitamin D deficiency, the vitamin D supply should only be determined if there is a reasonable suspicion of a deficiency or in people at risk.” (Sophia Lother )
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