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Vitamin D and Covid 19
Are You Getting Enough Vitamins?
Check your Vitamin D level with a simple self-test.
Sunlight is a good source of vitamin D but here in the nordic countries there may be little sun due to short days and staying indoors more due to the pandemic.
The dark winter time is coming and with a simple self-test you can now find out if you have optimal vitamin D levels.
What is Vitamin D?
Vitamin D is unique in that it acts both as a vitamin and as a hormone with several different functions in the body. The most important function is that it ensures the absorption of calcium from the food we eat. Studies also show that vitamin D is important for the activation of the immune system and other functions in the body.
Can Vitamin D Prevent COVID-19?
Recently, several professionals and medical circles have come to the conclusion that there is a connection between vitamin D levels and the COVID-19 illness progression and recovery.
The medical journal The Lancet has published an article on the link between high and low vitamin D levels and severe and mild COVID 19 infections.
The same is suggested in this article on the medical website NCBI
The interest in vitamin D in the prevention or treatment of acute respiratory infections dates back to the 1930s.
Controlled studies conducted between 2007–2020 also reveal protective effects of vitamin D against acute respiratory infections.
The risk of severe COVID-19 infections in connection with vitamin D deficiency is greater in combination with obesity, age, underlying diseases and people with higher pigmentation in the skin.
The time of darkness is coming
We are entering a time of darkness and sunlight is an important source of vitamin D. Here in the Nordic countries there may be little sun due to short days. Therefore, it is important to keep an eye on vitamin D levels during the winter months.
It is recommended to have vitamin D values up to 125 nmol / L during the pandemic. This is a good high level but without doing any harm.
Vitamin D is a fat-soluble vitamin and cannot be excreted in the urine. Therefore, one should not take excessive doses. Large doses will accumulate in the body and above 375 nmol / L there is a risk of a toxic effect.
The best way to find out if you have optimal values is to take a blood sample so that you can take the necessary steps such as adjusting your diet and possibly taking supplements.
Too much vitamin D can have harmful effects, especially due to too high levels of calcium in the blood.
But there is widespread agreement that optimal vitamin D levels are beneficial.
What can deficiency lead to?
Deficiency can lead to health problems such as:
- Weakened immune system
- Pain in muscles and joints
- Lethargy, especially in the season with little sun.
- Often tired
If you recognise two of these health problems, then you should check your level. The symptoms can be vague, and it can be difficult to notice low values
Vitamin D is also important for good bone and dental health. Vitamin D is therefore important to avoid osteoporosis later in life.
Mild vitamin D deficiency leads to an increased risk of osteoporosis and bone fractures, such as femoral neck fractures. Pronounced vitamin D deficiency is relatively rare and most often caused by intestinal disease with inadequate absorption of nutrients (malabsorption) or a very unbalanced diet.
What are the sources of vitamin D?
Vitamin D is the only vitamin that the body, under the right conditions, can produce itself. This happens when exposed to sunlight. Sunlight is a good source of vitamin D.
Here in the Nordic countries, there may be little sun due to short days. The main nutritional sources are oily fish, cod liver oil, fortified milk, eggs and cheese
Even with a normal diet, it can be difficult to get enough vitamin D.
Daily use of cod liver oil is therefore recommended during the winter months for anyone who does not cover their requirements through diet. For those who cannot or will not take cod liver oil, there are vitamin D drops or tablets that can be bought at pharmacies without a prescription.
What are normal values?
The Scandinavian reference values are between 50 and 125 nmol / L
Below 25 nmol / L is a pronounced deficiency
Between 25 and 50 nmol / L is moderate to mild deficiency
Between 75 and 125 nmol / L is a good level
Between 126 to 375 nmol / L is a high level
Above 375 nmol / L danger of toxic effects
Source: Carlsson MDvitamin. A medical overview. Lund: Studentlitteratur AB; 2013
The best way to find out if you have low values is to take a finger prick test. The test will answer whether you have optimal levels.
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