Risk of Undersupply?
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Vitamin D: the Myth of the Wonder Drug
Video Clip • 01:42 Min • From 12
A vitamin D deficiency often presents with non-specific symptoms such as fatigue or muscle pain. The risk of undersupply increases, particularly in winter—with potentially serious consequences for health.
The Most Important Points at a Glance
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Vitamin D deficiency occurs especially in winter and manifests with non-specific symptoms such as fatigue or muscle pain.
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Long-term consequences can include bone loss and metabolic disorders.
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Risk groups include older people, those with chronic illnesses, and people with dark skin.
Vitamin D plays a central role in health, particularly for bone metabolism and the immune system. However, the risk of vitamin D deficiency increases significantly in the winter months in temperate latitudes. Understanding vitamin D levels is crucial for maintaining overall wellness, especially as daylight hours decrease.
The body’s own production of the vitamin is not possible at this time due to the weak UVB radiation, explains the Robert Koch Institute (RKI). If stores from the sunny seasons are insufficient, a deficiency can occur, which manifests through a variety of symptoms.
Stiftung Warentest has tested Vitamin D. Here you can find out which preparations they recommend.
Symptoms of Vitamin D Deficiency
Vitamin D deficiency often goes unnoticed for a long time, as the symptoms are often non-specific. The most common signs include:
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Fatigue and concentration problems
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Headaches and sleep disturbances
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Muscle pain and increased susceptibility to infection
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Mood swings, including depressive moods
In the long term, a chronic deficiency can have serious consequences, such as bone loss (osteoporosis), as vitamin D is essential for the deposition of calcium and phosphate in the bones.
Too in the News:
Risk Groups for Deficiency
Certain groups of people are particularly at risk of developing a vitamin D deficiency. According to the RKI, this primarily affects:
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People over 60 years of age, whose skin produces less vitamin D
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People with chronic gastrointestinal, liver, or kidney diseases
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People with dark skin, as this is less permeable to UVB radiation
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Pregnant and breastfeeding women due to their increased needs
Also, a lack of time spent outdoors or complete covering of the skin can increase the risk.
Diagnosis and Treatment
A vitamin D deficiency can be diagnosed by a blood test. According to the RKI, a deficient supply status exists with a serum level below 30 nmol/l (12 ng/ml). Values below 50 nmol/l (20 ng/ml) are considered suboptimal and can already have health consequences. Treatment is usually carried out by taking vitamin D preparations to compensate for the deficiency.
Prevention and Nutrition
To prevent a deficiency, regular stays outdoors during the sunny months are recommended to stimulate the body’s own vitamin D production. dietary supplements can help to cover the need. Vitamin D-rich foods such as fish, mushrooms, or fortified products also contribute to the supply.
Sources Used:
Robert Koch Institute: “Vitamin D”
