Many people take vitamin D to strengthen bones and support the immune system, especially during the winter.
Many take supplements daily because sunlight is insufficient during the darker months. According to SciTechDaily, this is a regular habit for many adults.
There are two types: D2 and D3. D3 is produced in the skin through exposure to sunlight and is found in animal-based foods such as fish and eggs.
D2 comes from plants, particularly fungi, and is often used in plant-based products.
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Differences in vitamin D
A new study, including research from the University of Surrey and published in Nutrition Reviews, has reviewed several human trials.
The results show that D2 and D3 do not function in the same way in the body.
Previous research from Frontiers in Immunology also indicates that D3 plays an important role in the immune system. It helps the body respond quickly to viruses and bacteria.
Possible consequences
Low levels of vitamin D may increase the risk of illness and weaken the body’s defenses. Therefore, the type consumed is important.
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In some cases, D2 may lower the level of D3 in the body. This means that D2 does not always provide the same effect and, in certain situations, may counteract the body’s needs.
Sources: SciTechDaily, Nutrition Reviews, and Frontiers in Immunology.
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