Our yellow sun is the most abundant natural source of Vitamin D available to us, on the planet Earth. Sure, we can get some from consuming organic foods (fatty fish, egg yolks)—and from vitamin enriched foods (like milk) as well as nutritional supplements—but if you want to get more vitamin D all you have to do is go outside and do a little sunbathing.
In a healthy way of course.
But most people don’t get enough sunshine. To be honest, most people probably don’t get enough fresh air, in general. And that is too bad because recent medical studies suggest that a lack of vitamin D could be linked with both a higher risk for asthma as well as a higher risk for bladder cancer.
Of course, various studies have also linked vitamin D deficiency with other health problems, too. This includes everything from cardiovascular disease to autoimmune disorders to cognitive impairment.
But the latest study—from researchers at the University of Warwick and the University Hospital Coventry and Warwickshire has determined that not enough vitamin D could increase risk for bladder cancer. The research actually compiled data from seven studies , each looking at roughly 120 people. In five out of the seven studies, the researchers were able to link low vitamin D levels to a higher risk for bladder cancer. In fact, the study shows that vitamin D encourages immune response in transitional epithelial cells in the bladder.
Another study, unrelated, found that children with vitamin D deficiencies were also 1.35 times more likely to have asthma than children who have adequate levels of vitamin D. While adults with vitamin D deficiencies were not shown to be at a higher risk for developing asthma—and we don’t understand the link, yet, between children, vitamin D, and asthma—this study is important as it demonstrates the importance of optimal health even in children.
Culling these two isolated studies, then, Public Health England (PHE) now advises that all children over the age of one—and all adults, too—should have at least 10 mcg of vitamin D in order to maintain optimum levels. The good news is that you can’t really get too much vitamin D so you can freely combine a slight supplement with increased solar exposure.
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