According to DR, it is a widespread belief that vitamin C can cure or shorten the duration of a cold.
In an interview with DR, professor of Nutrition and Health at the University of Copenhagen, Susanne Gjedsted Bügel, explains that this is not the case.
She points out that vitamin C deficiency is rare in developed countries, as most people get enough through a regular and varied diet.
Therefore, drinking extra orange juice makes no real difference if daily requirements are already met.
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The popular idea of citrus fruits as a quick fix is not supported by scientific evidence.
The real challenge of winter
However, the situation is different when it comes to vitamin D. DR reports that many people have low vitamin D levels during the winter months – especially in northern countries.
One reason is that sunlight is too weak during this period for the body to produce sufficient amounts on its own.
According to Susanne Gjedsted Bügel, vitamin D is found in fatty fish such as salmon and mackerel, but it can be difficult to obtain adequate amounts through diet alone.
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Health authorities therefore recommend taking vitamin D supplements during the winter months.
A long-term deficiency of vitamin D can increase the risk of osteoporosis and bone fractures.
People may feel tired or experience muscle soreness, although it is also possible to have a deficiency without noticeable symptoms.
Supplements with care
The professor emphasizes to DR that dietary supplements should not be taken without a specific need. Multivitamins are unnecessary if there is no specific deficiency.
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A targeted vitamin D supplement during winter, however, can be beneficial for many people.
Individuals who follow a vegetarian or vegan diet should also pay attention to their vitamin B12 intake.
Oranges and other citrus fruits do not cure the common cold.
Source: DR.dk.
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