It is estimated that up to 85 percent of people ha
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The Role of Vitamin D in Disease Prevention
A growing body of evidence shows that vitamin D plays a crucial role in disease prevention and maintaining optimal health. There are about 30,000 genes in your body, and vitamin D affects nearly 3,000 of them, as well as vitamin D receptors located throughout your body.
According to one large-scale study, optimal vitamin D levels can slash your risk of cancer by as much as 60 percent. Keeping your levels optimized can help prevent at least 16 different types of cancer, including pancreatic, lung, ovarian, prostate, and skin cancers. Moreover, vitamin D can build your defenses against cancer by:
Enhancing the self-destruction of mutated cells (which can replicate and cause cancer)
Slowing down the production and spread of cancer cells
Helping in the differentiation of cells (cancer cells are not differentiated)
Preventing the formation of new blood vessels from pre-existing ones (this can help stop the progress of benign tumors into cancerous ones)
Vitamin D can also help reduce the risk of other conditions as well, including type 2 diabetes, chronic inflammation, age-related macular degeneration (the leading cause of blindness), and Alzheimer’s disease.
Vitamin D also exhibits its infection-fighting abilities in the treatment of tuberculosis, pneumonia, colds, and flu. It can also improve seizure control in epileptics.
While scientists refer to vitamin D as a vitamin, it is actually a steroid hormone obtained from sun exposure, food sources, and supplementation. Common types of vitamin D are vitamin D2 and D3. Compared to D2, vitamin D3 is 87 percent more effective, and is the preferred form for addressing insufficient levels of vitamin D.
The Vitamin D Epidemic in the United States
Today, many Americans are found to be in a serious deficiency state. Over 95 percent of senior citizens in the US may possibly be deficient, along with 85 percent of Americans. The late winter average vitamin D level was found to be about 15 to 18 ng/ml, which is far below optimal levels.
Cases of vitamin D deficiency are also seen more frequently in individuals (of all ages) that have increased skin pigmentation, including those whose ancestors are from Africa, the Middle East, or South Asia.
This deficiency problem also applies to people who often use sun protection, or those who spend more time indoors than outdoors. Regardless of skin pigmentation, deficiency can be even worse if they live in northern latitudes, as there is very little sun exposure (I'll discuss this in a bit).
The Vitamin D and Vitamin K2 Connection