Vitamin D plays a central role in the body, affecting everything from bones and immune system to mood and cardiovascular health. Vitamin D deficiency is widespread, especially in northern regions where the sun is low in winter and many people do not get enough exposure to UV index to form enough vitamin D in the skin.
Strengthens bones and teeth
Vitamin D helps the body absorb phosphate and calcium, which are necessary for strong bones. A lack of vitamin D can lead to poor bone health and, in the worst case, osteoporosis. In children, severe deficiency can lead to rickets.
Strengthens the immune system
Vitamin D plays a key role in the immune system and helps the body fight infections. Studies suggest that vitamin D intake may be particularly important for counteracting autoimmune conditions and promoting a healthy immune response. If you are overweight and vitamin D deficient, the deficiency may increase the risk of low-grade inflammation in the body.
Protects the heart and blood vessels
Vitamin D can reduce the risk of cardiovascular disease as it helps regulate blood pressure and prevent inflammation in the blood vessels.
Studies show that vitamin D deficiency is associated with an increased risk of high blood pressure and atherosclerosis.
Affects mood and brain function
Vitamin D is important for brain function and mental health. Low vitamin D levels are associated with an increased risk of depression and may play a role in diseases such as Alzheimer's. Some studies show that vitamin D can improve mood and reduce the risk of vitamin D deficiency and winter depression.
Regulates blood sugar and insulin
Vitamin D may improve insulin sensitivity and reduce the risk of type 2 diabetes.
Studies show that people with vitamin D deficiency have an increased risk of insulin resistance and metabolic syndrome.
You get vitamin D from sunlight, diet and supplements.
The body can produce vitamin D itself when the skin is exposed to UVB rays from the sun. Sun protection and sunscreen are important to avoid skin damage, but can also reduce vitamin D production. It is a balance to get enough sun to produce vitamin D without increasing the risk of skin damage. Vitamin D and skin type are also crucial, as darker skin has a harder time producing vitamin D in a short time in the sun. Vitamin D is found especially in fatty fish such as salmon and eel, in liver and in milk and butter. Dietary supplements are a way to ensure a stable intake, especially in the winter months, when the body's natural production decreases due to low UV index.
If you choose to take supplements, you should be aware that vitamin D is fat-soluble and is best absorbed together with, for example, a healthy oil.
Can you get too much vitamin D?
Yes, it's all about balance.
According to the European Food Safety Authority (EFSA) and the Danish Health Authority, the maximum safe daily dose (UL – Upper Limit) is 100 micrograms.
When does vitamin D become harmful?
Toxic levels typically occur at very high doses over a long period of time, for example above 250-500 micrograms daily for several months.
conclusion
Vitamin D is essential for maintaining a healthy, fit and strong body. It strengthens the bones, immune system, heart, brain and mood. Many people get too little, especially in the winter months, and many do not eat enough vitamin D. That is why I, like many others, take STAI all year round. Think of it as your health insurance/savings. By balancing your vitamin D intake from sunlight, diet and supplements, you can better ensure an optimal level and benefit from all the beneficial effects of vitamin D.
STAI has 15 micrograms of vitamin D in a daily serving.
STAI v/Jytte Bille, lifestyle guide
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