A new study performed by researchers at Queen Mary University in London suggests that supplements of vitamin D may keep winter colds and coughs away. The substance might be great in preventing respiratory tract infections especially for people who have deficiencies of vitamin D.
The researchers declared that they developed the study as a support of the new public health measures that advise on the consumption of diets that boost vitamin D intake. This vitamin is important because it regulates the amount of calcium and phosphate in our bodies, which keep our teeth, bones, and muscles healthy.
Previous studies discovered that people did not get the necessary amount of 10 micrograms of the vitamin per day from sunlight during winter, so they recommended supplements or foods rich in vitamin D so that people could boost their health during winter time.
Now, the new study suggests that the vitamin is good not only for the teeth and bones, but also for our respiratory system. Respiratory tract infections are widespread all over the globe and are one of the leading causes of death. All types of such infections, ranging from a common cold to bronchitis or pneumonia, were found to be linked to low levels of vitamin D in the blood.
Vitamin D was indeed found to trigger some immune response, but the researchers wanted to see how exactly it can impact the respiratory tract. They performed 25 randomized control trials on supplements with 11,321 participants aged from 0 to 95.
They noticed a 12 percent reduction in participants who experienced respiratory tract infections. Also, the results were better in those who took daily or weekly doses of supplements. They were not able to establish the exact effect the vitamin had on certain age groups, but the overall purpose of the research was to support the introduction of a diet richer in vitamin D in the guidelines.
However, other researchers question the results of the study and point out to some flaws it contains. They suggest that the results are not applicable to the general population and say that there is not enough evidence in support of the claim that vitamin D prevents respiratory infections.
What the results show is actually an immunity improvement for those who show a deficiency of vitamin in their blood. Despite the results, following a diet rich in vitamin D can only bring benefits to our health and is worth trying.
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